'Gossip Girl' star splits with girlfriend

Gossip Girl star Chace Crawford has split with girlfriend Carrie Underwood, reports claim.

Crawford has been dating the former American Idol winner since last July, but their relationship was thought to be in trouble in February when he was alleged to have kissed a girl at an LA club.

He was also spotted partying with Mary-Kate Olsen at a bar in New York earlier this month, where an onlooker said they were "definitely making eyes at each other”.

Crawford recently spoke out to quash rumours of a romance with former 'N Sync singer J.C. Chasez, while speculation that he is dating co-star Ed Westwick has also been denied.

> Face Off: Chace Crawford vs Adam Brody