Hollywood Hotties Flock to Barbie’s 50th Birthday Party

She’s an institution in American popular culture, and at last night’s Barbie 50th Birthday Bash in Malibu, plenty of red hot celebrities turned up to party.

“Project Runway” star Heidi Klum was in the house, looking conservative-yet-sexy in a black floral print dress with a black jacket and black heels.

Meanwhile, “Hills” hotties Lauren Conrad and Lauren “Lo” Bosworth also made an appearance. LC looked cute in a blue one-shoulder blouse with a black skirt, while Lo donned a revealing pink and black swirled dress.

Never one to be left out, Aubrey O’Day showed up in a flirty belted pink minidress, while Khloe and Kourtney Kardashian both looked sexy in black.

Finishing off the star-studded guest list were Ginnifer Goodwin and up-and-coming star Aly Michalka.

Gossip Girls

Enjoy the pictures from Barbie's 50th birthday bash in Malibu (March 9).