A new report indicated that Nick Cannon and Mariah Carey's marriage is on the rocks.

Even after the former American Idol judge showcased her boobs to the world as a gift to Cannon for his birthday, the National Enquirer claimed that the gesture was a cover-up to their marital problems.

The gossip tabloid reported that the couple has been going through ups-and-downs, with Carey deciding not to wear her wedding ring on several occasions fueling rumors that she's been cheating.

"All this cavorting around with handsome men has Nick seeing red," a source said. "He's about at the end of his rope with Mariah."

Sources told the publication that Carey has been worried about Cannon too, because of his younger age. She reportedly flipped out when she showed up to his Wild N' Out set of his MTV show and discovered him flirting with a female contestant. Cannon just turned 33 years old and Carey is 43.

Nonetheless both Carey and Cannon's reps have denied the claims.

"Happy Birthday to my Hubby @NickCannon..."my baby I'm waiting on youuuuu" hahaha! KKLB! GHL! Mwah!!!," Carey tweeted Cannon early Tuesday morning.

Carey and Cannon, who are parents to twins Monroe and Moroccan, often tweet 'KKLB' to each other, but have never revealed what it stands for. When a reporter asked Cannon what it mean in, the actor Nick said it was none of the interviewer's business.

Cannon previously defended his wife when she appeared as a judge on American Idol, in which he criticized FOX for fueling the drama between her and Nicki Minaj.

"When you see someone like my wife, who tries to remain classy and tries to take the high road, it feels like everybody else around it - including the network and the producers - feed into this whole sound bite drama. It feels like it lacks substance," he said on The Talk.

Tags
Mariah Carey, Nick Cannon