The Hills Throws Season 4 Premiere Party

It’s no small feat that they’ve lasted (and survived) four seasons. And for the arrival of Season 4, the producers of “The Hills” threw a massive party last night (August 18).

Held at the Paradise Cove in Malibu, California, the Season 4 premiere party was attended by all of the ladies and gentlemen that we’ve loved watching over the years.

Lauren Conrad, sporting a champagne colored plunging neckline party dress with sandals, looked to be enjoying herself, mingling with co-stars Whitney Port and Audrina Patridge, as well as her parents Jim and Katherine Conrad.

Also in the house were Heidi Montag and Spencer Pratt, rocking a khaki one-shoulder minidress with white platform heels and a dark suit respectively.

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Enjoy the pictures from the Season 4 Premiere party of "The Hills" (August 18).