weblogs.sun-sentinel.com — The music production team known as Rock Mafia, which has written and arranged songs for Miley Cyrus, Mariah Carey, Scotty McCreery, Selena Gomez and Demi Lovato, is looking nationwide for a Latina DJ to join the crew. Doron Ofir Casting, which has offices in New York, Los Angeles and South Beach, is handling the interviews.