Actress Mischa Barton's ex-boyfriend, CISCO ADLER, has found himself a new high-profile girlfriend in model and publishing heiress LYDIA HEARST-SHAW. Whitestarr rocker Adler and Hearst-Shaw spent Tuesday, Wednesday and Thursday night (09-11Oct07) together at events in New York, and were spotted kissing in a private booth at hip club The Box. Adler split from Barton in February (07), while Hearst-Shaw recently ended a relationship with actor Justin Bertha, according to People.com. Shaw-Hearst's publicist Alan Rish says, "It's true that Cisco and Lydia have been seen together in public recently. But I don't think this is serious. It is a very new relationship."