The former boyfriend of Mischa Barton is in a very new relationship

By Jeffrey Slonim
Updated October 12, 2007 07:00 PM
Credit: Jon Kopaloff/FilmMagic; Michael Buckner/Getty

Former Mischa Barton beau Cisco Adler has a new high-profile gal pal: model and publishing heiress Lydia Hearst-Shaw.

Adler, 29, the lead singer for Whitestarr who split from Barton in February, accompanied Hearst-Shaw, 23, to The Cinema Society’s screening of We Own the Night in New York on Oct. 9.

They were also seen the next night kissing in a private booth at New York s hot nightclub The Box, and again together Thursday at the club Tenjune, where Adler was a guest DJ.

Hearst-Shaw, who recently ended a long-term relationship with actor Justin Bertha, the sidekick to Nicolas Cage in the National Treasure movies, is the face of Nars cosmetics – and the great-granddaughter of publishing magnate William Randolph Hearst.

“It’s true that Cisco and Lydia have been seen together in public recently,” says Hearst-Shaw’s publicist Alan Rish. “But I don’t think this is serious. It is a very new relationship.”