Kevin Connolly and Lydia Hearst Split

Kevin Connolly and Lydia Hearst have broken up.

The Entourage star and the socialite/model, who dated for more than a year, have gone their separate ways, a source confirms to PEOPLE.

Cisco Adler Dating Publishing Heiress Lydia Hearst-Shaw

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.