Beyonce Knowles
Just making sure it's still there.
Rihanna
Looks like her reign as queen of sexy short hair may finally be over...
Joe Jonas
Slick hair and suave suite but not as sexy as Kevin (according to People magazine anyway).
Christina Aguilera
Criticized for a lack lustre performance all too similar to Lady GaGa.
Mariah Carey
Understated, subtle and classy (except for the diamante encrusted microphone).
Miley Cyrus
Embracing the perks of (finally) being 16.
