Star Tracks 

Duff makes sure her pal doesn't breathe a word. Plus: Christina Aguilera, Charlize Theron and more

BALANCING ACT photo | Reese Witherspoon

3 of 16

BALANCING ACT

Reese Witherspoon is abs-olutely in fine form during a workout with a trainer Thursday in Santa Monica.

Next Photo

Credit: Shirley-Perkins/ Pacific Coast News

Published: Friday Sep 14, 2007 | 02:15 PM EDT

Add PEOPLE Photos
  •  | 
Advertisement