Your favourite music groups in film / tv cameos?

[Trevor]

I saw The Simpsons Viva Ned Flanders episode over the weekend and was surprised to find The Moody Blues in it ~ I always wanted to know what was inside Ray Thomas' flute, now I know it conceals a dagger. 

[lester1/2jr]

I'm not a big fan of the band Anthrax but their episode of Married With Children was great.

[FatFreddysCat]

My all time favorite has to be when the Ramones sang "Happy Birthday" to Mr. Burns on "The Simpsons"...

Joey: "We'd just like to say, this gig SUCKS!"
Johnny: "Yeah, up yours, Springfield!"
(band plays song)
C.J.: "Go to hell, ya old bastard!"
Marky: "Hey, I think they liked us!"

[Menard]

The Doobie Brothers on What's Happening.

Honorable mention of The Seeds on The Mothers-In-Law, Mel Torme on Night Court, and Fabian literally singing Turn Me Loose to a fanatical Laverne and Shirley. (though, the last two were individual artists so I don't know if they count)

[AndyC]

My all time favorite has to be when the Ramones sang "Happy Birthday" to Mr. Burns on "The Simpsons"...

Joey: "We'd just like to say, this gig SUCKS!"
Johnny: "Yeah, up yours, Springfield!"
(band plays song)
C.J.: "Go to hell, ya old bastard!"
Marky: "Hey, I think they liked us!"

Burns: "Have the Rolling Stones killed."

[FatFreddysCat]

My all time favorite has to be when the Ramones sang "Happy Birthday" to Mr. Burns on "The Simpsons"...

Joey: "We'd just like to say, this gig SUCKS!"
Johnny: "Yeah, up yours, Springfield!"
(band plays song)
C.J.: "Go to hell, ya old bastard!"
Marky: "Hey, I think they liked us!"

Burns: "Have the Rolling Stones killed."

Smithers: "But sir, they're not the..."
Burns: "DO AS I SAY!"

[zombie no.one]

Twisted Sister in PEEWEE'S BIG ADVENTURE, I always crack up at that scene

(not really a big fan of their music though)

[ChaosTheory]

My all time favorite has to be when the Ramones sang "Happy Birthday" to Mr. Burns on "The Simpsons"...

Joey: "We'd just like to say, this gig SUCKS!"
Johnny: "Yeah, up yours, Springfield!"
(band plays song)
C.J.: "Go to hell, ya old bastard!"
Marky: "Hey, I think they liked us!"

That, and the Spinal Tap cameo are probably my favorites.  I'm not a huge fan of Sting but his appearance on The Simpsons was pretty great too ("Quiet Marge, he's a fast digger!"  )

Alice Cooper in WAYNE'S WORLD
not a fan, but Eminem in FUNNY PEOPLE
(language NSFW)
http://www.youtube.com/watch?v=0qWMjgpIECA

[tracy]

Alice Cooper's appearance in the film "Wayne's World"....awesome and funny.

[HappyGilmore]

"Weird Al" Yankovic in The Naked Gun.

[The Burgomaster]

The Doobie Brothers on What's Happening.

Oh, yeah!  With Jeff "Skunk" Baxter!

[The Burgomaster]

The Lovin' Spoonful in WHAT'S UP TIGER LILY?

[voltron]

Godflesh in Hideaway. Karl McCoy (Fields Of The Nephilim) and Lemmy in Hardware.

[AndyC]

Never been a fan of Korn, nor have I paid much attention to South Park after the first couple of seasons, but I loved the halloween episode, "Korn's Groovy Pirate Ghost Mystery." Great Scooby Doo parody, and a really weird thing to do with the guest stars. Plus, it was a funny episode in general.
http://www.youtube.com/watch?v=YFAWKrzaXCE