The 90210 star marches on for a day of shooting on the show's L.A. lot. Plus: Nicole & Joel, Jennifer Aniston, the cast of Entourage and more

LIVING SINGLE

Nicollette Sheridan – who recently called it quits with fiancé Michael Bolton – steps out solo at the fifth anniversary party for trendy L.A. eatery Il Sole. Also making the scene at the bash: Paris Hilton and Benji Madden, Kate Bosworth and Courteney Cox Arquette and David Arquette.