News Bites: Nick Cannon, Mariah, PCD, Beyoncé, Ashanti, Big Boi, Janet, Eve, Ciara

Nick Cannon shuts down Six Flags Magic Mountain for new bride Mariah Carey and their closest friends. Full story.

The Pussycat Dolls to perform new single “When I Grow Up” at the 2008 MTV Movie Awards. Details.

Beyoncé attends Kanye West’s Glow in the Dark tour in New York City. Photo.

Listen to the full version of Ashanti’s “Body On Me” featuring Nelly and Akon. UPDATE: This is unlikely the official version.

Big Boi working with Mary J. Blige, André 3000 on solo album. More.

Janet Jackson and Eve attend the opening of Alexander McQueen’s flagship store in L.A.

Ciara to release three disc set in September. Details.