From USA TODAY...
WARNING: DO NOT READ IF YOU WANT THE PERFORMANCES TO REMAIN A SURPRISE
Elton John and Lady Gaga kick off the show.Can they upstage the piano man's memorable Stan duet with Eminem in 2001?
Beyoncé's medley is shaping up as a monster production number.]Will it measure up to Beyoncé's Proud Mary duet with Tina Turner in 2008? Does this year's Taylor Swift transcend last year's Taylor Swift?
Others:
•Mary J. Blige and Andrea Bocelli will join voices on Bridge Over Troubled Water.
•Jeff Bridges will introduce a Les Paul tribute, How High the Moon, with guitar hero Jeff Beck and rockabilly singer Imelda May.
•Maxwell and Roberta Flack reprise her Where Is the Love and his Pretty Wings.
•Eminem and Lil Wayne join Drake on his Forever, with Blink-182's Travis Barker on drums.
•The Black Eyed Peas' I Gotta Feeling will incorporate singalong videos submitted online by fans.
•Green Day does 21 Guns, sharing the stage with the cast of Broadway's upcoming American Idiot, based on the trio's album.
•Bon Jovi will play a song chosen by fans, who can vote at cbs.com/grammys for Always, It's My Life or Livin' on a Prayer until the band takes the stage. (Logic suggests Sugarland's Jennifer Nettles, a late addition to the Grammy bill, will pop up here for duet Who Says You Can't Go Home.)
•Country pop trio Lady Antebellum performs Need You Now.
•Pink tackles Glitter in the Air.
Full article here:
http://www.usatoday.com/life/music/a...T_N.htm?csp=34
And the Grammy's are usually kinda boring if you try to watch the whole thing... but this year seems even drier than usual..
Come on Beyonce for the MEDLEY! 
Idk I'm sad that GaGa and Bee won't be performing together. 
