News Bites: Notorious B.I.G., Soulja Boy, Lil’ Mama, Mariah Carey, Leona Lewis, Mario

Notorious B.I.G. biopic begins shooting in Brooklyn next week. Full story.

Lil’ Mama and Soulja Boy going on tour together. More.

Mariah Carey to appear as a guest judge on “American Idol.” Details.

Watch Leona Lewis perform “Bleeding Love” on “Oprah.”

Watch Mario do the cha-cha-cha on Monday’s “Dancing With The Stars.”