Mariah CareyMariah Carey is reportedly secretly dating actor/rapper Nick Cannon.

According to the News of the World, the pair met when Mariah approached him to star opposite her in one of her forthcoming music videos and the diva was amused by the comedian.

A source told the newspaper: “Mariah fancied Nick immediately. He tickles her sides as well as her fancy.”

Mariah has been in the UK this week, promoting her new album ‘E=MC2′.