It isn't all glamour in Hollywood. Behind the scenes, celebrities are sweating it out on treadmills, in classes, on bikes, or on the road, just like the rest of us. Because they spend just as much time at the gym as in the studio or on a movie set, I've rounded up some memorable fitness-related quotes from the past six months to see if you can remember who said what. It's guaranteed to jog your memory and brush up your celebrity-trivia knowledge! Good luck!