The top 10 celebrity workouts and celebrity diets for May 2010 focus on Jake Gyllenhaal, Robert Downey Jr., Gwyneth Paltrow, Scarlett Johansson, Erin Andrews, Nicole Scherzinger, Chris O’Donnell, Blake Lively, Ellen Pompeo, and more!
Robert Downey Jr. prepared for his role as Tony Stark in Iron Man 2 with an unconventional, functional workout by trainer Brad Bose to add 20 pounds of muscle.