Rap mogul Sean Combs protegee Cassie has hit back at claims she's copying Janet Jackson. The 19-year-old, who is signed to Diddy's Bad Boy label, is a huge fan of the singer - but insists her music is all her own. Cassie says: "I'd love to emulate her career. She's incredible, from her moves to her voice. "I'm a diehard fan of Janet but a lot of people compare my video for Me + U to hers for PLEASURE PRINCIPLE. I was just rehearsing in the studio, they filmed me and the record label thought it would be great for the video."