This is when a character gets on another character's nerves, usually by talking nonstop, and the other character covers his ears and starts singing so he can't hear him.
The person doing this will almost always either start singing "The Star-Spangled Banner", or else just go "La-la-la". This is sometimes done (in-universe or in real life) to avoid hearing a spoiler, something squicky, or anything else that a character feels he or she would be better off not hearing. Usually goes hand-in-hand with Too Much Information.
Compare I Can't Hear You (outside noises disrupt a conversation), Headphones Equal Isolation (headphones block outside sounds), and Fake Static (pretending that a remote communications channel is failing).
- Done in an Australian ad for insurance, aka CUA, where many people are blocking their ears and singing 'LA LA LA LA' all for just insurance rates.
- Jeff Foxworthy whenever someone brings up "female problems": "Female problems? La la la la la la la la..."
- Dilbert: H.R. Director Catbert covers his ears and sings "Pinball Wizard" whenever an employee tries to give him input.
- Calvin and Hobbes: Calvin covers his ears and sings "The Star-Spangled Banner" when Hobbes tells him he'll be short all his life and his parents are planning to sell him to a sideshow.
- Taken to the extreme by Paul in a Buckles Sunday strip from summer 2007, when he refuses to give his food to Buckles, who keeps begging for it by making whining voices. This was in the last two panels.
- Done in the Teen Titans fic A night out:
Garfield just laughed at that. "That's what I love about you two. You're exact opposite but have such a strong friendship."
"Friend Raven is the best girl friend that I have. She even helps me during the week of blood." Said Kory with a bit too much enthusiasm.
"Too much info Kor. La la la la." Said Garfield with his hands on his ears.
- In Bard of Morning's Hope Kingsley Shacklebolt covers his ears and hums when Harry mentions the (presumably illegal) "special something" he added to the wards on Grimmauld Place.
- In Losing Control Harry's girlfriend makes an innuendo about his "wand" and her mother covers her ears and starts chanting "LALALALALA."
- In Death Note: The Abridged Series (kpts4tv), Matsuda does this when L proves that Light is Kira.
Matsuda: La la la la la I'm not listening!
- In Nails and Tails Harry asks about Seamus Finnigan's definition of "mate" in an attempt to clarify their relationship and Dean Thomas covers his ears and goes "Lalalala."
- Dark Lord Hadrian:
Daphne: This is the part where someone tells a joke to lighten the mood.
Hadrian: I know a good one. A phoenix, dementor and nundu walk into a bar.
Draco: Not listening, not paying attention at all lalalalalala!
- Not the Only Redhead:
Hannah: Where were you! Do you have any idea what time it is? The sun is rising!
Harry: Hear that, dear?
Susan: Sure did. Means we didn't miss class. Or breakfast. Merlin's beard! But I'm hungry! We did work up quite an appetite.
Hannah: LALALALALA! DON'T WANNA KNOW!
- Third Time's the Charm:
Hermione Potter: Fine. Henceforth, I shall refer to your father as 'The Man Who Shagged Me Rotten So You Could Be Born And With Whom I Copulate Every Single Night'. Happy?
Christopher Potter: La la la la. I'm not listening!
- In Back in Black Sam covers his ears and hums when Dean mentions what few details he can remember of a six-man orgy he participated in while drunk on Asgardian mead.
- Doing Things Differently:
Sebastian: Honestly, you kids. You go at it like rabbits, but when adults do the same, you can't control your retching. Sirius has needs, just like-
- Thunder Child:
Eli: It's the Great Hall Grim one, not the hall of greatness.
Sif: Ignore it Prince Eli, he is still in a somewhat primitive stage for words.
Hogun: You weren't calling it primitive last night.
Eli: La la la la too much information la la la la la...
- In Undertale Against Humanity, this is Asriel's response to Asgore talking about Toriel's vagina.
- In The Potters Ruin Book Club Harry rents a subpar romance novel and teasingly suggests that he and Ginny could re-enact page 206.
Harry: Samuel approached Geraldine with his umbrella-
Ginny: You are going nowhere near me with an umbrella.
Harry: He placed it on the floor in front of her, and-
Ginny: La, la, la. I'm not listening.
- A Chance of Family:
Remus: No Sirius, a physical relationship, I think they are having a physical relationship as well.
Remus: No Sirius, not unless that is a euphemism for sex.
Sirius: LA LA LA LA LA LA LA LA, don't use that word in context of Harry!
- In Jonah A Veggietales Movie, Jonah has a dream where God asks him where he's running to. Jonah tries his hardest to ignore God by the excuse that he can't hear him, including singing loudly.
- Elsa was meant to do this during the unused Frozen song "Life's Too Short". It starts out as a sweet song about how the sisters need each other but takes a quick Mood Whiplash to the point where Anna and Elsa are basically singing insults at each other.
Both: Life's too short...Anna': To let you treat the people out there just as coldly as you always treated me.Elsa: *hands on head* LA LA LA LA LA LA LA LA!
- This happens in The Emperor's New Groove with Kuzco and Pacha after Pacha warns Kuzco not to venture into the forest. Kuzco responds "La la la la I'm not listening!" and keeps it up a bit as he starts walking on the path into the forest before "la la"-ing again and shouting back "Still not listening!"
- In The Rescuers Down Under, Frank the frill-necked lizard covers his ears and sings "Waltzing Matilda" when Krebbs the koala starts describing what the poacher is going to do to them. Then Frank uncovers his ears to see if Krebs is done, only for Krebbs to just now finish his sentence, to Frank's horror.
Krebbs: Frank will go as...
Frank: I can't hear you! LA-LA-LA-LA-LA-LA-LA! WALTZING MATILDA! (slightly uncovers his ears to see if Krebbs is done)
Krebbs: ...a purse.
Frank: AAAGH! NO-HO-HO-HO-HO!
Krebs: A lovely ladies' purse!
- The Swan Princess II: Queen Euberta's constant babbling soon becomes too much for her captor, the evil wizard Clavius to handle. She doesn't even stop when Clavius turns her into a bunch of different animals.
Clavius: "YI YI YI YI YI - I don't hear you! YI YI YI YI YI - I'm not listening! YI YI YI YI YI YI YI YI YI YI...
Uberta: Don't take that tone with me!
- Done in Dr. Jekyll & Ms. Hyde during one of Richard Jacks's attempts to explain his plight to Sarah.
- Liar Liar - Jim Carrey's character knows he is cursed to speak the truth when answering a question, but not if he can't hear the question! Doesn't work.
- Miracle Max in The Princess Bride, when his wife is provoking him by reminding him of his treatment by Prince Humperdinck.
- Beverly Hills Cop. After messing up the cigarette sting operation Axel Foley is bothered by fellow cop Jeffrey. Foley uses the "la la la" version while trying to get Jeffrey to stop.
Foley: I am not listening to you.
Jeffrey: Great. Real mature.
Foley: I am not listening to Jeffrey, but he's still talking.
Jeffrey: I hate when you do that.
- In Honey, I Shrunk the Kids, when Ron and Amy get into an argument, Ron plugs up his ears and hums "Stars and Stripes Forever". She gets back at him later by handing him a fistful of mud while softly humming the same tune.
- In Blast from the Past, Calvin has his son Adam clap his hands over his ears and hum loudly to himself so he won't hear Calvin's horrifying description of the strange world of mutants and perversion outside the fallout shelter he's just seen for the first time. Adam is a bit exasperated, as he's a 30-year-old man, but he dutifully complies.
- A Dave Barry book mentions the trial of a Corrupt Corporate Executive whose defense was apparently based on the fact that he didn't know there was any embezzling going on. So the obvious procedure is to stick your fingers in your ears and yell "Lalala I can't hear what you're saying!!!" during board meetings.
- In one of the Ender's Shadow books, Peter tells Petra that she's arguing like a nine-year-old, and that she might as well put her fingers in her ears and say "La la la, I can't hear you." Of course, she promptly does.
- Septimus Heap: Merrin Meredith does this to drown out the irritating wail of a Swamp Wraith.
- In Diary of a Wimpy Kid: The Last Straw, when Greg and Rowley are being driven to a roller skating rink to impress Holly Hills and Susan overhears the conversation:
Susan: Holly Hills? Holly Hills was the only fourth grader at school who wasn't potty trained.
Greg: LA LA LA...I CAN'T HEAR YOU!
- In an episode of Happy Endings, Brad does this twice. First, when someone brings up Sexandthe City, going "lalalala, I have it on DVR!" Then later, when Max mentions that Jane (Brad's wife) slept with nearly every guy she dated, he says "lalalala, let me know when you're done!"
- Played for Laughs in an episode of True Blood: One of the main characters is a psychic, and one of her friends wanted to keep a secret from her. When the psychic tunes into her friend's thoughts, all we hear is "LALALALALALALALALALALALALALA".
- Invoked/Exploited/Enforced (whatever) in Bones where Booth has to talk to Brennan and Sweets about something grisly in front of his young son, so he has his son cover his ears and sing a song while the adults talk.
- Attempted by Kurt on Glee when his dad gives him "The Talk". Fortunately his dad forces him to sit and listen to what winds up being a very sweet discussion about the importance of self respect and sex.
- A dead serious example in Farscape where John escapes Scorpius by singing "The Star Spangled Banner" to drown out the influence of Scorpius' neural clone.
- A very funny version in Stargate SG-1 when O'Neill tries to calm down a very angry Teal'c.
O'Neill: Look, T, I'm not gonna tell you how to raise your kid, but I've always found that sticking your fingers in your ears and humming loudly solves a whole slew of problems.note
- When G'Kar objects to the Centauri Emperor's upcoming visit to Babylon 5, Sheridan sarcastically tells him that if he can't deal with it he should put his fingers in his ears and hum really loud until it's over.
- The filk band The Flash Girls turned this trope into an actual song: "A Meaningful Dialogue"
- Naughty Boy and Sam Smith do the same with their song "La La La". This singing is done in the lyrics to cope with a failing relationship, and in the music video, based on a Bolivian fairy tale, has a boy does this to the devilnote in order to prevent his voice from influencing mankind.
- When Charlene and Robbie on Dinosaurs ask a teacher questions he doesn't want to answer he goes "La la la, can't hear you!"
- In Avenue Q, Rod tries using "la la la" when Nickie tries to discuss homosexuality with him in the "If You Were Gay" number.
- Nepgear does this to Neptune at the start of Hyperdimension Neptunia Victory to force the latter to get out and work on her own.
- There's an NPC in Ratchet & Clank: Going Commando - a biker in Vukovar Canyon on planet Barlow - that uses this trope because Ratchet offended him; he is only willing to listen to Clank.
- This happens twice in Kid Icarus: Uprising: Thanatos does it during one of Palutena’s quotes, causing Pit to wonder aloud whether Thanatos is Obfuscating Stupidity or just dim, and Viridi does it when Pit comments on how the Komaytos look like Metroids (because, according to Viridi, the two video game universes have nothing to do with each other).
- In The Sims 2, if two sims have a bad conversation, one of them might cover his or her ears and go "La La La La!".
- In The Sims 3, a sim may do this when refusing an opportunity by phone call.
- In Tales of Monkey Island Episode 1: Launch of the Screaming Narwhal, Guybrush does this when he is talking the Voodoo Lady. To avoid her very long talking, Guybrush plugs his ears and says, "La-la-la-la! Not listening!" This mutes the Voodoo Lady's voice before Guybrush unplugs his ears, just in time to hear the rest of the Voodoo Lady's talking.
- In The Curse of Monkey Island, if you don't want to hear LeChuck's explanation of past events, one of the options is for Guybrush to turn his back to him, cover his ears and shout "Lalala, I can't hear you, lalalala".
- Diablo II: Blizzard warns you, they will not recover your Hardcore Character if it dies.
Blizzard will not, and does not have the capability to restore any deceased Hardcore characters. Don't even ask. La-la-la-la-la, we can't hear you...
- Isabeau does this in Shin Megami Tensei IV after the Black Samurai tells her spoilers for the manga she's reading.
- In FreudBot one of the cards Steve can play is "Lalalalalala."
- In The Darkside Detective, shortly after the one and only time Agent McScream is any help at all, he decides being helpful is too tiring and does this if the protagonist tries to persuade him to keep being helpful.
- In If the Emperor Had a Text-to-Speech Device, Magnus does that when the Emperor starts to talk about his... troublesome sex life. Kitten, on the other hand, puts a bucket on his helmet. It doesn't help much either of them.
- A How It Should Have Ended spoof of Captain America: Civil War has Bucky do this when Zemo attempts to brainwash him, preventing Bucky's transformation back into the Winter Soldier.
- A running gag in early Arthur, King of Time and Space was Arthur doing this every time Merlin started predicting things he didn't want to hear.
- In Freefall, one of the robots uses this as a "security measure" against sticky notes detailing Gardener in the Dark, an update which will effectively lobotomize every robot on the planet, and which is forced on any robot which searches the name on the network, because all they know about it is that it's so dangerous it caused one of them to open his power breaker to avoid its effects. 
- Understandably done in Questionable Content by Faye while Dora and her recently out of the closet younger sister feel the need to openly discuss intimate things.
- In Hiimdaisy's Let's Destroy the Shagohod, Snake gets defeated by The End and dragged a fair distance away from the boss arena. Snake gets slightly frustrated, and starts sprinting through the jungle. When a guard spots him, Snake, while still sprinting, says "La la la! I can't hear you!"
- In Leftover Soup, Jamie takes Simon's suggestion a bit literally.
- Carry On: Kathy hints at having a thing for steam engines. Sandy doesn't want to know about it.
- After Lindesfarne and Fenton get married in Kevin And Kell, they explain to Fenton's "smart house" Tree that they're going to need privacy, and Tree agrees to "override [her] awareness functions" when asked. This turns out to mean going "La-la-la-la".
- This Cracked article points out that in Inception Cobb could have prevented a lot of trouble if he'd put his fingers in his ears and sung while Ariadne gave the rest of the team directions instead of insisting on her telling him first.
- Duck Guy in Don't Hug Me I'm Scared notes that The Healthy Band's extremely faulty explanation on how the digestive system works makes no sense. They ignore him and continue to sing their health song with greater volume.
- Zelda Universe’s video Hades’ Misguidance had this in the first episode; as Pit, Viridi and Hades talk about Corrin, Hades is just about to talk about what he learned when studying Corrin (which thus would spoil the plot of the game Corrin came from), but before he can begin, Pit and Viridi do this and during that Pit tells the viewers to play the game and not listen to Hades (due to the strictness of spoilers).
Fry: You can't lose hope just because it's hopeless. You gotta hope more, then put your fingers in your ears and go "Blah blah blah blah!"
- And again in "Put Your Head On My Shoulders," when Fry's body has been horribly damaged in an accident and his head has been grafted onto Amy's shoulder. When Fry wants to discuss something without Amy hearing, he asks her for some privacy. She complies by singing softly to herself in Martian while Fry is talking.
- Adam West does it at least once in Family Guy, in the episode where he made a giant golden Dig'Em statue and the town protests against this waste in taxpayer money.
- The Simpsons:
- On the season nine episode "Simpson Tide", the Naval Reserve recruiter does this when Homer tries to ask him about a question on the application that got blocked out about being a homosexual, which, if asked, would get the recruiter sent to jail for discrimination.
- In the sixth-season episode "Bart's Girlfriend", Reverend Lovejoy's rebellious daughter Jessica admits responsibility for stealing money from the church collection plate, a crime initially pinned on Bart. When she claims she was crying out for attention, the reverend covers his ears and sings "Bringing in the Sheaves" as he runs out of the church with Jessica trailing behind.
- In Season 21's "Bart Gets a Z", Principal Skinner orders the students to stick their fingers in their ears and go "la la la" while the new substitute teacher is drunk and shouting about how alcohol is a great way to get rid of sadness and other similar things.
- The Flea did it once to his baby sister Pulgita in ˇMucha Lucha!.
- Shaggy and Scooby-Doo do this in Scooby-Doo! in Where's My Mummy? when Velma tells them that the tomb of Cleopatra has a curse.
- The Avengers: Earth's Mightiest Heroes! has Tony do this when Rhodey criticizes his decision to give up weapon-making and become a vigilante.
- Camp Lakebottom: In "Buttastic Journey", Buttsquat tries this in an attempt to drown out McGee (who is talking to him from inside his head).
- In one episode of Kaeloo, Kaeloo gets angry at Mr. Cat for something he didn't do and does this whenever he tries to talk to her.
- Charlie does this in one episode of Charlie and Lola - revealing that he had been eavesdropping on his sister (and her imaginary friend) in the process.
- In one episode of The Adventures of Jimmy Neutron: Boy Genius, the Literal-Minded Jimmy asks for a baby brother, and explains how, biologically, it would be incredibly simple to, err, initiate the process. While his mother is horrified, his father engages in this trope before abruptly changing the subject to pie.
- There's a documented real life instance of this occurring during the reign of Mongke Khan (grandson of Genghis Khan) where he invited representatives of the major religions in the area (Christianity, Islam and Buddhism) and challenged them to a Mongol-style debate on the nature of the universe, the soul, and other moral questions. It was going well enough at first, except it's customary in Mongol wrestling matches for the competitors to drink from bowls of alcoholic kumis between rounds, so after a few turns everyone was getting a bit tipsy and the Christians started loudly singing hymns to drown out their competitors, so the Muslims responded by chanting verses of the Koran, and the Buddhists retreated into silent meditation. The contest ultimately ended in a draw when everyone was too drunk to continue.
- Autism spectrum disorders can cause extreme sensitivity to sound, and people on the autism spectrum sometimes cover their ears and hum to block out irritating sounds.
- Deaf people achieve the same result by covering their eyes