Stars' Bikini Styles

See how Jessica Alba, Tara Reid, Cameron Diaz and others work their two-piece magic – then tell us what you think. By Emily Fromm


For the Elizabethtown star, working out is more fun with a friend. She and beau Jake Gyllenhaal have been spotted hitting the gym together, lifting weights and walking the treadmill side-by-side. The buddy system must work: The actress (in L.A. in June) can get away with this tiny bandeau-top bikini.