Armed with a more mature look and a smokin’ hot new video, Jesse McCartney’s ready to prove he’s all grown up. Hoping to put his Disney days behind him with his upcoming album, Departure, the soon-to-be 21-year-old isn’t afraid to shake things up in search of Justin Timberlake-like success. We sat down with Jesse to talk about his new style, his new sound and crossing over into adulthood. Watch what he had to say and then check out the video for “Leavin’.”

See more of our interview with Jesse here…