Celebs Get Physical

Reese Witherspoon goes incognito jogging with her big black shades and Puma hat in Brentwood on March 12.

Kate Hudson

Kate Hudson looks breezy and content riding her bike in L.A.’s Venice on Oct. 14, 2006.

Kate Beckinsale breathes deep while doing some squats in L.A.’s Brentwood on June 6, 2006.

Jessica Biel

Jessica Biel and her dog both get a cardio workout in Los Angeles on March 23.

Josh Duhamel & Fergie

JoshDuhamel and Fergie do some couples cardio in Santa Monica on March 3