Mariah Carey's Pals Give Nick Cannon Marriage Six Months

Mariah Carey's marriage to Nick Cannon won't last longer than six months, friends of the singer have said.

The 'Touch My Body' hitmaker -- who married rapper Cannon in Apri -- is said to be so demanding that her new husband won't be able to cope with her diva-like behavior.

A pal close to Mariah says Nick has become a source of ridicule for her friends and associates.

The source reveals to Life & Style magazine, "I give the marriage six months, tops. I can't see it lasting.

"Nick does whatever Mariah wants him to -- he's like her puppy. It seems like he spends more time in the stores with Mariah's credit card than he does with Mariah herself.

"Mariah's assistants and friends call him 'Whipped Nick' behind his back. They have little respect for him because he won't stand up for himself."

However, a friend of Nick's has vehemently denied the relationship is already in trouble, insisting the pair are perfect for each other.

The pal said, "Mariah needs someone to dote on her."

Mariah, 38, and Nick, 27, tied the knot in a secret ceremony in the Caribbean in April, after dating for just one month.

Mariah was previously married to record company boss Tommy Mottola for five years.