Kardashian Sisters Team Up with Heidi and Spencer

It was a star-studded affair last night at Millions of Milkshakes in Los Angeles, California, as Heidi Montag, Spencer Pratt, Perez Hilton, and the Kardashian sisters all showed up.

The iconic ice cream shop was brimming over with paparazzi as the “Hills” hotties did their thing, concocting their own signature milkshake.

Meanwhile, Kim, Khloe, and Kourtney all gathered around for some taste testing as well, and at one point Kim decided to forgo the glassware and drink straight from the blender.

And of course, living it up with his celebrity friends, blogger Perez Hilton took every opportunity to pose for pics, sporting an obnoxious yellow jogging suit.

Gossip Girls

Enjoy the pictures of the Kardashian sisters at Millions of Milkshakes with Heidi, Spencer and Perez (January 16).