Miley Cyrus Sings at ‘So Undercover’ Wrap Party (VIDEO)

Miley Goes Wild
See all of Miley Cyrus' wildest on-stage outfits.
Just because Miley Cyrus is focusing on her film career doesn’t mean that she’s totally abandoned music.

The 18-year-old former Hannah Montana star celebrated the completion of her latest movie, So Undercover, by taking the stage at the film’s wrap party on January 22 and busting out a raucous rendition of the Joan Jett and the Blackhearts chestnut “I Love Rock ‘n’ Roll.” Cyrus had some very special accompaniment during her impromptu performance—in addition to the backing band, Groovy 7, Miley’s So Undercover co-star, Entourage actor Jeremy Piven, sat in on drums.

Check out the video after the jump. Do you love Miley loving rock ‘n’ roll? Let us know in the comments section.