Mine is MGMT.
I'd say Machine Head, or Megadeth or Metallica.
AC/DC
<3 Pink Floyd <3
runners-up: Iron Maiden, Billy Talent, Social Distortion, Our Lady Peace, Gamma Ray, Jefferson Airplane, U2, Megadeth
No Beatles? Also AC/DC and The Black Eyed Peas' older works. The Beach Boys were also good.
necrobump, but who cares?
My favourite band is My Bloody Valentine. Used to go by the name on MarioWiki for about two years because of how much I love them before changing it to my current one. I've also got a soft spot for The Beatles, Sonic Youth, Miles Davis, Orphaned Land, Cruachan, Pink Floyd, and Redgum.
3 Door's Down, Good Charlotte, and Green Day come to mind.
Mine is Vampire Weekend now or maybe even fun..