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 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, 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."

-Mischa, Mischa, Mischa

(This news article provided by World Entertainment News Network)