Miley Cyrus Rocked 'So Undercover' Wrap Party With Jeremy Piven

Miley Cyrus took to the stage for an unlikely collaboration this week - she rocked out with Jeremy Piven at the wrap party for her new movie "So Undercover". The teenager stars alongside the "Entourage" actor in the new movie, opposite Kelly Osbourne, and movie bosses threw a celebration for the cast when the cameras stopped rolling.

Cyrus and her castmates danced to a live band at the party, until the singer/actress decided to take the stage herself with Piven on drums for a performance of "I Love Rock 'n' Roll". The "Hannah Montana" star revealed her stage partner in a video message posted on YouTube.com, telling fans, "I can't believe how quick it's gone. We had a really good time. We actually just had a wrap party... They let me and Jeremy Piven (get up on stage)... (he's) in this movie, and so he got up on the drums and we played I Love Rock 'n' Roll."

However, filming hasn't yet finished for Cyrus - she has to return to the set to shoot extra scenes.

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