Renee Zellweger set tongues wagging as she danced the night away to live Billy Joel hits with a mystery man.

The Bridget Jones star looked smitten as she shimmied up close to her handsome partner.

Zellweger, 38, has been rumoured to be dating an agent at Hollywood firm CAA - and onlookers speculated her man for the night was one and the same.

The pair were attending the outdoor Social@Ross concert in East Hampton, New York, with other stars including ...