The Grammy Nominations Concert

Mariah Carey performs

This year, for the first time, the Grammys nominations were announced on live television at a special concert in Los Angeles hosted by Taylor Swift and LL Cool J and featuring performances by Swift, Mariah Carey, Christina Aguilera, Foo Fighters, Celine Dion, John Mayer and B.B. King. View a complete of list of nominees in all the major categories and check back with Metromix for more Grammys coverage.