Mariah Keeps Nick On Check

Nick Cannon is learning the hard way that being Mr. Mariah Carey isn't all its cracked up to be. While at the opening of the MGM Grand at Foxwoods with pals P.Diddy and Quincy Jones, he got a call from Mimi demanding that he come back home.

"He was summoned home by her at 1 in the morning," a source said. "He didn't look happy about it."

Mimi is a diva with just about everyone in her life, so why should she be any different with her new (and much younger) hubby. Sounds like a lifetime of happiness ahead! Or divorce court in two months, you decide.