NONE other that R&B, and Hip Hop....and of course Rap Example: R.Kelly, Mariah Carey, Nelly, Jazzy Pha, Cassidy, Jkwon, Alicia Keys, OutKast, Jamie Foxx, D12, Eminem, Boys in the Hood, Young Jeezy, Gucci Mane, Lil Wayne, 112, Keysha Cole, Ne-Yo (Stay), Pretty Ricky, Mike Jones, Paul Wall, Slim Thug, Chamillonare, 50 Cent, Game, Cassidy, Fat Joe, Black Rob, Akon, Baby Fase, Musiq, Lloyd Banks, Young Buck, Beanie Sigel, David Banner, Bobby Valentino, Bun B, Webbie i guess, Bone Thugs n Harmony, Bow Wow, Ciara, Boys 2 Men, Brian McKnight, Bubba Sparxx, Ray Cash (Sex Appeal), Charlie Wilson, Chris Brown, Dem Franchise Boyz, Lil Scrappy, Dr. Dre, Etc