MICHEL MARTIN, BYLINE: By the time Marvin Sapp was 10 years old ... and successful gospel singers in the country. (SOUNDBITE OF SONG, "NEVER WOULD HAVE MADE IT") SAPP: (Singing) And I never ...

Gospel superstar Marvin Sapp is going secular — if only for a few songs. His new mini-album is called "If I Were an R&B Singer." ...