April 04, 2011 06:15 PM

Casey Rodgers/AP

Someone’s feeling kinda groovy! Private Practice star Kate Walsh got in touch with her inner disco diva Saturday during a celebration for her fragrance, Boyfriend. The actress and pals — including T.R. Knight and Kevin McKidd (above, working cool costumes!) plus Katherine Heigl (below) — danced the night away at Walsh’s Los Angeles home, getting down to disco tunes spun by DJ Jordan Masterson. Guests sipped cocktails from 42 Below — with cheeky names like the Straw-Bowie Lemonade, Berry White and Studio 42 — and kept the dance floor funky all night. Office star Angela Kinsey and The Hangover‘s Rachael Harris even wore roller skates, and wheeled around the dance floor with polyester-clad friends like Zachary Quinto and Taye Diggs. Boyfriend, which launched on HSN in November and hit Sephora shelves in February, was inspired by a past love, Walsh told PEOPLE in October. “I missed his scent after we broke up and I was shopping one day and I was like, ‘I don’t need my boyfriend to have a boyfriend scent!'” The vanilla, amber and floral fragrance also has some of the woody and musky notes reminiscent of her first beau’s cologne, Ralph Lauren Polo. “Whether you have a boyfriend or not, it’s really that feeling of security, comfort and that good purr factor,” she said of the scent. “I wanted to tell a story with my perfume.” —Reporting by Jessica Wedemeyer

Casey Rodgers/AP


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