Affleck and Garner show their team spirit at a Red Sox vs. Yankees game at Boston's Fenway Park. Plus: Mary-Kate Olsen, Pamela Anderson and more

12 of 16

HAVING HER CAKE

Brooke Shields knows the secret to a sweet birthday – her own cake! – while celebrating her 42nd during a visit to the Kari Feinstein Style Lounge (before the MTV Movie Awards) Thursday in Los Angeles. Meanwhile, the awards show airs on June 3.