The Jonas Brothers are really growing up and branching out!  Kevin Jonas, 22,  just married long-time girlfriend Danielle Deleasa, Joe Jonas, 20, is furthering his acting career in the upcoming flick Valentine’s Day and Nick Jonas, 17,  debuted his first music video yesterday with his new band Nick Jonas and the Administration.

The video for “Who Am I?” is shot in black and white. Nick’s new album Who I Am hits store Feb. 2 . The crooner is currently on his first US solo tour to promote the album, ending on Jan. 30 in Berkeley, Calif.

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