Ear Worm/Western Animation/Warner Bros.

Ear Worms in animation include:

"Oh, we're the boys of the chorus We hope you'll like our show We know you're rootin' for us But now we have to goooooooooo!"
 * Watch too many old Looney Tunes and Merrie Melodies shorts and you'll get the opening and closing music stuck in your head.
 * There is one old Daffy Duck cartoon (in color, but when he was still actively daffy) where Daffy sang this theme. It's called "The Merry-Go-Round Broke Down."
 * Here it is.
 * And let's not forget the clasic Bugs Bunny Show theme This Is It
 * I remember there was this one Bugs Bunny episode where he was interviewed about his past... and it featured this short song of him with three other people that made me laugh everytime. The only line I can remember is... "Now it's time to goooooooooo!"
 * It got transcribed in a FoxTrot strip once. It went like this:


 * It seems impossible to find, but those seven notes that play whenever the minah bird (the one who does nothing but hop along) appears are unbelievably catchy.
 * "Fingal's Cave" by Felix Mendelssohn.
 * Baby Looney Tunes... for your sanity and mine, DO NOT LINK TO THE OPENING!!
 * "We are Russian gremlins/Up in the sky we're found..."
 * The Batman the Animated Series theme. Especially the opening hook.
 * The Batman Musical from the "Out of the Past" episode of Batman Beyond.
 * A superstitious cowardly lot...
 * It's Schway!
 * It's Schwarbage.
 * Theme Superman the Animated Series theme is just as good. Even without lyrics, you want to sing along: Superman! Superman! Suuu-perman.... Superman!
 * Here, this should help.
 * Don't forget The New Batman/Superman Adventures
 * Batman Beyond's Intro.
 * The Justice League Unlimited theme song should be noted as well.
 * Found right here.
 * "We're tiny, we're toony, we're all a little looney..."
 * Happy World Land, Happy World Land! Where the fun doesn't stop, at only 80 bucks a pop in beautiful Happy World Land!
 * "It's time for Animaniacs! And we're zany to the max!"
 * Wakko Warner presents: "The Capitals of all 50 States".
 * And Yakko's World. "United States, Canada, Mexico, Panama, Haiti, Jamaica, Peru..."
 * Those are hardly suprising, considering that the former is "Turkey in the Straw" and the latter is "The Mexican Hat Dance".
 * The sense of sight is what guides us right, we we go out on walks... Oh GOD, make it stop!
 * Is it me, of does that song sound suspiciously similar to Tom Lehrer's "The Irish Ballad"?
 * They're simply written in the same rather common metre; the best known example is probably the Nightmare Song from Iolanthe.
 * They parodied "The Macarena" with "Macadamia Nut". Some might say a little too well...
 * And, of course, the President Song.
 * "Be Careful What You Eat." Once you realize, that that's the frickin' can can, it just won't ever leave.
 * Cuckoo clock/ Tick-tick-tock/ Piece of chalk/ Key and lock/ Oh, du schöne/Oh, du schöne/ Oh, du schöne/ Schnitzelbank!
 * Let us introduce ourselves O people of this land!/ We are the Warner Brothers/ With Sister close at hand!/ I bet you all our wondering who is this young unknown?/ And why am I inheriting the Anvilanian throne?
 * What are We: Maybe we are dogs/ Cute little dogs/ With ears/ And little tails that we can wag/ Hey! Let's go fetch his slippers and play tag!
 * Almost every song in this show is an ear worm, like this one, this one, and this one too
 * "It's called Histeria! The world premiere-ia! We dare ya to watch Histeria!"
 * "We are the Moai statues, and we stand on Easter Isle..."
 * "They're Pinky and the Brain! Yes, Pinky and the Brain! One is a genius, the other's insane!"
 * "And the other one's Larry!'
 * They're laboratory mice! Their genes have been spliced! The Pinky, the Pinky and the Brain Brain Brain Brain Brain Brain Brain Brain Brain!
 * Oh, how I love my cheeses! CHEEEESE from around the world!. Setting a song about cheeses to "Semper Fidelis" = genius.
 * "What we are singing/Is take off your pants..."
 * "Super teen extraordinaire! Freakazoid! Freakazoid!"
 * Runs around in underwear. Freakazoid! Freakazoid!
 * In-universe, Invisibo's theme proves to be this. ("Where did he go? That Invisibo?"). It's sung to the tune of "It Don't Mean A Thing If It Ain't Got That Swing".
 * "You're a meany, nasty Lobe/You're as bad as villains get..."
 * The theme for Duck Dodgers. This troper doesn't even like the show, but used to flip to it just to hear the theme song. It was catchy AND addictive.
 * When there's trouble you know who to call, Teen Titans! From their tower they can see it all, Teen Titans!
 * You think you can defeat me? Oh, how very droll! Well, Titans, one thing you should know. I am the one with magic powers 'round here, I am the one who runs the show!
 * "When there's trouble you know what to doooooo, CALL CYBORG! He can shoot a rocket from his shoooooe, 'CAUSE HE'S CYBORG!"
 * Nagare nagare te kita mon da, kita kara nishi e kake nuke te kite, tadori tsui ta koko wa ittai dokoooooo...
 * Superhero, Static Shock
 * "It doesn't matter what we do or say / 'Cause the teachers always get their way!"
 * MU-CHA LU-CHA, MU-CHA LU-CHA!
 * He's the Music Meister
 * Don't forget the song that Black Canary, Catwoman and Huntress did, Birds of prey
 * "Dubba dubba Kids dubba dubba WB! Dubba dubba Kids dubba dubba WB!"