Grammys 2010

Get the Party Started!: The Stars Arrive in '09

Katy & M.I.A, Miley, Jennifer Hudson and more stars rock the night at the Staples Center in L.A.

MUSIC MASH-UP

Pals Miley Cyrus and Taylor Swift, who teamed up later in the evening to perform Swift's single "Fifteen," first share a clutch moment with hip-hop star LL Cool J, a presenter at Sunday's Grammys.