- In a general live performance sense, this is fairly common, for obvious reasons. Just a few of the things that can invoke it:
- You're the singer, and you've just forgot your lines or you've came in at the wrong place or you've fallen to Vocal Range Exceeded. Or, alternately, you're one of the other members of the band and you notice the singer is in trouble. Similar for guitarists making major errors (or having lied about their skill level beforehand), and really a problem if the drummer or rhythm guitarist is the person having issues keeping the beat - that often induces a small version of Mass "Oh, Crap!" with all the other band members realizing just how bad the song's going to sound and how bad the gig is likely going to be.
- Someone has gotten sick or injured onstage or in the audience. This one easily turns into Mass "Oh, Crap!" as well, for obvious reasons.
- One of the band members' sound output is failing somehow. Worst is if it's one of the guitars (including the bassist), or the keyboardist, because that carries the possibility that the instrument itself failed (though it's usually only a loose connection) - and while most venues do carry extra mics for a singer to use in a pinch (or can patch him/her directly into the PA system with a lapel mic or a smartphone if set up for it and all else fails, though this is often avoided because it will make the singer much louder than the band), most don't have a stray electric guitar or bass or keys lying around, and even if the person has a backup, the show has to stop to set up his/her gear again for the new instrument.
- For a Visual Kei band or other act that uses a lot of stage makeup, special effects, and the like, a Special Effects Failure. If said Special Effects Failure involves pyro, Oh, Crap! and Mass "Oh, Crap!" are the best outcomes.
- Gakupo's reaction in Madness of Duke Venomania when he realizes just who the "girl" in his arms really is, just before being stabinated by Karchess, who dressed himself up as a woman to save Yufina, one of the Duke's harem, and take revenge on him.
- When German pop act Milli Vanilli performed live on MTV in 1989, everything was going well until their hit song "Girl You Know It's True" started skipping during the chorus (unfortunately, there don't seem to be any videos on Youtube that aren't either dubbed over or butchered), revealing that it was prerecorded and that Milli Vanilli were lip-syncing all along. The two continued dancing and "singing" along before That Syncing Feeling set in and they realized that the gig was up. This was the beginning of the end for the band.
- From "The Coward of the County" when some rapists get confronted by the boyfriend of their victim and think that they have him cowed, only to end up trapped in a room with him right before getting a No-Holds-Barred Beatdown. "But you could have heard a pin drop - when Tommy stopped and locked the door..."
- In "Dinosaurchestra Part 3" by Lemon Demon, the time machine which the narrator used to go back to the late Cretaceous period and start a rock band with dinosaurs can't make the return trip, and then..."What's that rock way up in the sky?"
- In the music video for "Stylo", when 2-D and Murdoc realize that they are being chased and shot at by none other than Bruce Willis.
- The music video for "The Lost Chord" has Murdoc sporting this expression throughout almost the entirety of the band's time at Plastic Beach, and it only gets worse as Poseidon emerges from the depths of the ocean and begins to destroy it. Understandable, considering that Murdoc has been struggling throughout the entire season to prove to the band that he's becoming a better person, only to be unceremoniously thrust back to the place that practically serves as a monument to his worst mistakes and most cruel actions.
- In the beginning of "Welcome to the Jungle," a singer briefly and subtly says "Oh my...god," before any of the intro gets through.
- In the song "Get My Gun" by D12, Eminem angrily threatens a fan with a gun:Wassup, bitch?! (cocks gun) Autograph this! (click) ...Oh, shit.
Well gotta go, I'm almost at the bridge now/Oh shit! I forgot! How am I supposed to send this shit out-
- Speaking of Eminem, the title character of "Stan" is recording the latest letter he's sending to his hero on an audio tape while his pregnant girlfriend is locked in the boot of his car and he's about to drive them all off a bridge to their deaths. He has a massive Oh, Crap! when he realises just before the car goes over the edge that he's overlooked one fairly important point...
- Followed by Eminem getting one himself as he responds to Stan's previous letter, telling him that he needs to calm down before he does something crazy, like this one psycho on the news who locked his girlfriend in the trunk of his car and drove off a bridge:And in the car they found a tape, but they never said who it was to/Come to think about it, his name was... it was you... damn...
- In "Der Erlkönig", the boy is increasingly terrified (and justly so) each time he tries to get it through to his father that the Erlking is after him [the boy].
- OH NO! NOOO! PLEASE GOD HELP ME!
- More or less mankind's reaction in the final verse of "Iron Man" when the titular time traveler, after being sealed away for centuries, is reawakened and proceeds to kill everyone.
- If you are or were a teenaged boy, you probably cringe when you hear the lyrics to the Everly Brothers Wake Up Little Susie.
- The final verse of Nickelback's "Animals" has the main characters getting busy in the protagonist's car by the tracks. Everything's going well until the girl notices that her dad is right outside the car and has caught them in the act. And worse, the keys aren't in the ignition because they fell on the floor in the middle of it. Oh crap indeed.
- The narrator in "One" by Metallica has this when he realizes that he lost his sight, speech, hearing, and limbs due to a landmine, but his mind functions perfectly so he is a prisoner inside his own body.
- "The Mariner's Revenge Song" by The Decemberists tells the story of a little boy whose widower mother was conned out of house and home by a traveling vagrant who eventually left them so destitute that she developed a fatal case of tuberculosis, but not before begging her son to one day exact justice on the man: "Find him, bind him, tie him to a pole and break his fingers to splinters, drag him to a hole until he wakes up, naked, clawing at the ceiling of his grave." The boy spends fifteen years as a street orphan until he's taken in by a friary, but never loses his desire to exact revenge upon the conman, until one night he discovers that the man has become a ship captain. He joins a crew and sets sail in the hopes of finding him. One night their two ships finally cross paths, but before the narrator can do anything, both crews are devoured by a giant whale, leaving only the narrator and the conman alive. It's only right when the narrator is about to finally fulfill his mission that the conman realizes just what kind of death he's in for."It gives my heart great joy to see your eyes fill with fearSo lean in close and I will whisper the last words you'll hear..."
- In the Ice-T song "Midnight" Ice-T, Evil-E, D, and Hen had just stopped two people from carjacking them. Ice then turns to see that the jackers had brought along a bunch of their friends.Looked to my left, There were two more carloads, Niggas in hats and hoods, In an attack mode, And they hadn't yet begun to fight
- The Pharcyde's "Oh Shit" sees each member of the group describe situations they were in that led to these moments. all of them Played for Laughs.
- "Hey You", by Pink Floyd. Here, the protagonist realizes what a large mistake he made after completing his mental wall, and in the process, isolating himself from society. The rest of the song details his attempts to reconnect with society, but to no avail.But it was only fantasy. The wall was too high, as you can see. No matter how he tried he could not break free. And the worms ate into his brain.
- The Swedish folksong Hårgalåten has a mysterious player arrives at a feast and start playing a strange tune no one can stop dancing to. At the end of the first verse someone notices his feet and exclaims: "God saves us, he has the foot of goat!"
- The Scooby-Doo on Zombie Island song "It's Terror Time Again" is a song about running and being chased by real monsters, and as the title indicates, the characters have a lot more to be terrified about than usual, as conveyed in both the movie stills and the song lyrics.You hear the beating of your heart
You know the screaming's gonna start
Here comes the really scary part
'Cause It's terror time again
They got you running through the night
It's terror time again
And you just might die of fright
It's a terrifying time.
Oh Crap / Music