Miley performing at the Grammy awards!

We’re four days away from music’s biggest night, and RyanSeacrest.com has exclusively acquired the new promo for the big show, detailing the first hour breakdown of artist performances.
The first hour of the show will feature Lady Gaga‘s highly anticipated performance of her new single “Born This Way,” along with other performances by Bruno Mars, Usher, Justin Bieber, Miley Cyrus, Christina Aguilera, John Mayer, B.o.B. and more.
Rihanna and Eminem will make appearances later in the show, along with Bob Dylan, Barbra Streisand, Mick Jagger and others.
The 2011 Grammy Awards air Sunday, February 13 at 8/7c on CBS.