Work It, Girl.

This weekend, I stopped by the Muscle Milk Fitness Retreat event at a private estate in Beverly Hills. Celebs and media VIPs (ah-hem!) buzzed around the swanky home--a fully loaded oasis offering guests a few gifting tables (Oakley, Under Armour, etc.), sweat-drenching fitness classes, healthy yummy snacks, a tantalizing pool, Alterna hair salon, spa, the works! Lindsay Lohan and sister Ali took part in the festivities, as well as Lo Bosworth, Karina Smirnoff and more. Check it.