News Bites: Mariah Carey, Swizz Beatz, Ashanti, Rock the Bells, Fergie

Mariah Carey’s E=MC² debuts at No. 1 with 463,000 copies; biggest sales week ever for Mariah. More.

Swizz Beatz and Mashonda reportedly separate. Details.

Ashanti performs “The Way That I Love You” at R&B Live at Spotlight Live in NYC on Tuesday. Watch.

A Tribe Called Quest, Nas, Mos Def added to Rock the Bells tour lineup. Details.

Fergie contributes new song “Labels or Love” to Sex and the City: The Movie soundtrack. Listen.