Bugs is hanging out one day playing the banjo and singing "A Rainy Night in Rio," when his singing bothers Giovanni Jones, a pompous opera singer who is rehearsing his part in The Barber of Seville. When he finds himself absentmindedly singing along to whatever Bugs is playing, Jones storms outside to put an end to the disturbance. Beginning with destroying the rabbit's banjo, he gets even angrier as Bugs graduates to a harp and then a Sousaphone. When Jones finally ties him to a tree by his ears and pulls back, causing the rabbit's noggin to bang into the branch, Bugs decides it's on.
That night, at Jone's performance, Bugs doles out some characteristically hilarious abuse, first by striking the performance bowl with a mallet, causing Jones to shake all over the stage and fall into a tuba, then by disguising himself as a bobby socker and requesting an autograph... with a stick of dynamite. Then, for his finale, he enters the orchestra pit disguised as famed opera conductor Leopold Stokowski, takes over the orchestra and forces Jones to hold an ungoldly long C that literally brings the house down.
Listed in The 100 Greatest Looney Tunes.
- Bowdlerization: CBS hated this cartoon due to its violence in the beginning. The three times Giovanni Jones beats up Bugs (who keeps disrupting his opera practice by playing his own instruments) were cut when aired on CBS in the 1970s and 1980s. As a result, Bugs ruins Giovanni's opera for no good reason, making him a Jerkass.
- ABC was a bit more lenient with this cartoon. While it did cut out the part where Bugs dresses as a teenybopper looking for Giovanni's autograph and uses a dynamite pen to blow him up, the beginning was actually left intact.
- The song Bugs sings while playing the harp is "My Gal Is A High-Born Lady", a song with lyrics that were hella racist even by the standards of the 1940s. Chuck Jones and Mike Maltese wrote tamer lyrics for Bugs to sing.
- Cartoon Conductor: As "Leopold!" (Stokowski), Bugs has amazing control over the orchestra and Jones — and even the audience!
- Clothing Damage: Giovanni's opera tuxedo increasingly falls apart when Leopold Bugs makes him hold a high note for a long time, symbolizing the strain it's putting on him. The collapse of the Hollywood Bowl rips it completely to shreds.
- Death Glare: Leopold Bugs glares daggers through Jones before his performance, making it clear this won't be pretty.
- Disguised in Drag: Bugs as a teenybopper asking for an autograph. Of course, the pen is really a stick of dynamite.
- Disproportionate Retribution: While Jones' frustration at Bugs for disturbing his rehearsal is understandable, Jones responds with increasing violence every time Bugs obliviously interrupts his rehearsal. After these get particularly vindictive, Bugs himself takes very elaborate measures to ruin Jones' performance.
- Goofy Print Underwear: As Giovanni Jones clothing falls apart during his Incredibly Long Note, his pants fall down to reveal his blue underwear adorned with red flowers.
- Got Me Doing It: While trying to rehearse, Jones found himself singing along with whatever Bugs was playing, much to his ire.
- Hair-Trigger Temper: Giovanni Jones displays severe anger management issues, since he immediately resorted to violence each time Bugs interrupted him.
- Having a Gay Old Time: "Long hairs" used to be a slang term for conductors, due to the tendency for them to grow their hair longer than average, hence the cartoon's title despite Bugs not having long hair (save his Leopold wig).
- Helium Speech: Bugs gives Jones alum to get this effect (it's in the "Figaro" rendition).
- Incessant Music Madness: Bugs drives Jones nuts.
- Incredibly Long Note: The climax comes when Leopold Bugs forces Jones to hold an absurdly long note, even while Jones thrashes around on the stage with his face changing colors, until the Hollywood Bowl collapses on top of him.
- Overly Long Gag: The note is so long that Bugs leaves the podium (with his glove still holding the note) to go get earplugs...by mail.
- Instant Home Delivery: In the middle of the high note, Bugs steps out and orders some earmuffs by mail. Seconds after putting the form in the mail, The earmuffs arrive, without the postman even picking up the letter first.
- Jerkass: Instead of asking Bugs not to interrupt his rehearsals, Jones breaks his instruments and beats him up. Bugs is even uncharacteristically patient with him, and puts up with it three times before finally having enough of Giovanni's abuse.
- Knuckle Cracking: Bugs cracks his knuckles before having Jones hold a long note during the concert's finale.
- Mythology Gag: Bugs-as-Leopold nonchalantly snaps the baton in half because Leopold Stokowski never conducted with one.
- One-Book Author: Giovanni's singing is performed by Nikolai Shutorov, a baritone who had sang in Hollywood choruses but never received screen credit. This was his only solo work. He died before the cartoon's release.
- Paper-Thin Disguise: Everyone thinks Bugs is Leopold Stokowski even though he's only wearing a tuxedo jacket and a wig.
- Recitation Handclasp: Jones assumes this posture.
- Rule of Three: Guess how many times Jones attacks Bugs before the counterattack begins.
- Sesquipedalian Smith: "Giovanni Jones"
- The opening "Rainy Night in Rio" number is a reference to the long-forgotten film "The Time, The Place And The Girl," which was where the song originated.
- In the scene where Bugs disguises himself as an autograph-seeking teenybopper (an obvious disguise, of course), he says "Frankie and Perry just aren't it," referring to Frank Sinatra and Perry Como, two of pop music's biggest stars of the late 1940s.
- Standard Snippet: Besides all the songs Bugs plays and sings ("Rainy Night in Rio", "My Gal is a High-Born Lady", and "When Yuba Plays the Rhumba on the Tuba"), he ends the cartoon by picking the standard vaudevillian tag "Good eve-ning, friiiieeeeeeeeeeeeennnnnnnnnnnnnnnnnds..." on the banjo.
- This Means War!: Not only does Bugs utter this phrase near word-for-word, but it's also clearly indicated by his Death Glare.
- Vocal Range Exceeded: Leopold Bugs makes Jones sing a note far below his range.
- The Voiceless: Jones only speaks a couple of times in the short, but both times his voice is obscured, first when he's stuck inside the tuba and later when he whispers "Leopold!" to himself with the rest of the orchestra.
- Wag the Director: A minor In-Universe example. When Jones first steps out onto the stage and assumes the Recitation Handclasp, he lifts one finger to the conductor to indicate his readiness.