Lohan strikes a sexy pose on the set of a photo shoot in the Hollywood Hills. Plus: Kim Kardashian, John Mayer, Rihanna and more

CIRCLE OF FRIENDS

Talk about celebrity star power! Sheryl Crow and Hilary Swank cozy up to Law & Order: SVU's Mariska Hargitay during a gala for the star's Joyful Heart Foundation, which empowers and educates survivors of abuse and assault, Tuesday in New York City. Hargitay, who had been sidelined with a partially collapsed lung, revealed to PEOPLE that humor helped her heal.