Justin Bieber: 2011 Grammy Award Rehearsals!

Justin Bieber: 2011 Grammy Award Rehearsals!

Justin Bieber rocks out with buddy Jaden Smith during rehearsals for the 2011 Grammy Awards at the Staples Center in Los Angeles on Saturday afternoon (February 12).

The duo are set to perform tomorrow night with Justin‘s mentor, Usher. It’s going to be a “dynamic, energetic performance.”

Justin also stopped by the MusiCares signing booth this afternoon.

The 2011 Grammy Awards air live from the Staples Center in Los Angeles on Sunday, February 13th @ 8PM ET on CBS.

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Photos: WireImage
Posted to: 2011 Grammy Awards, Jaden Smith, Justin Bieber