Cannon cagey on Mariah engagement

Nick Cannon has remained tight-lipped about speculation that he is engaged to Mariah Carey.

The US rapper described Carey as a "great person", but wouldn't confirm rumours that he recently agreed to marry the diva.

Speaking to MTV, he said: "I can't even know what to say. She's probably the most festive, remarkable person I've ever met. She is a good friend. But rumours happen."

Carey was snapped with the musician wearing a large diamond ring at an after-party for new movie Tennessee on Saturday.

A source said: "Mariah and Nick looked really cosy. They were cuddling and made sure they held hands all night. Mariah looked really proud to there with Nick, and he seemed to be having a great time."

She was first photographed with Cannon earlier this month, undermining reports that she was dating Mark Sudack from her management team.