Former The O.c. star Mischa Barton has fuelled rumours she is dating Rooney rocker Taylor Locke, after the pair was photographed holding hands in Dublin, Ireland.

The actress met up with the guitarist on the band's recent stop in Ireland. The five-piece have been supporting Good Charlotte on their European tour.

And, on a break in their hectic schedules, the couple was seen having lunch together and strolling hand-in-hand through one of the city's parks.

Barton has previously dated Whitestarr rocker Cisco Adler.