Rihanna dating Williams?

NEW YORK: Rihanna has sparked rumours she's dating hip-hop star Pharrell Williams, after he was spotted leaving her London hotel several times during her stay in the British capital.

The Umbrella hitmaker split from ex-boyfriend Chris Brown earlier this year (09) following a well-publicised fight in Los Angeles in February (09), which left the Kiss Kiss singer facing criminal charges.

He was handed a community service order and five years supervised probation after pleading guilty to assaulting Rihanna last month (22Jun09).

The 21 year old has since been romantically linked to Lil Wayne's protege Drake, but the pair has dismissed the rumours - and now reports claim she's moved on by dating the N.E.R.D. star.

Rihanna has been staying at a hotel in London, and Pharrell, who has been working on the singer's new album, has been spending a lot of extra time with her and was spotted leaving her hotel numerous times.

A source tells Britain's the Daily Mirror, "It's no secret that Rihanna and Pharrell have chemistry. And not just in the studio - they seem mesmerised by each other. But Chris will be gutted to learn he could have lost Rihanna to one of the sexiest men in music. Rihanna and Pharrell talk on the phone all the time and whenever she can get a break in her schedule she'll go and support him at a gig