Fashionable Friends

Drew Barrymore and Cameron Diaz! Ashley Greene and Nikki Reed! See how famous BFFs stick together in style

HILARY SWANK & MARISKA HARGITAY

The two actresses are so tight that they stay at each other's homes when visiting the opposite coast, hosting girls' poker nights for their pals. "She's my best friend!" Hilary told interviewer Chris Harrison at this year's SAG awards. No doubt! Hil even flew out to New York just to attend Mariska's Joyful Hart Foundation gala.