POPSUGAR Fitness Celebrity Fitness Celebrity Running With David Kirsch Guess Which Celeb Went Running With Trainer David Kirsch? by Fitness 7/10/11 5 Shares Like us on Facebook Sign up for our daily newsletter > Can you guess which one of David Kirsch's celeb clients joined him for a run? FIND YOUR WORKOUT Read More David KirschCelebrity FitnessRunningGuess Who Running You'll Feel Like a Badass After Finishing This Treadmill Workout The Fat-Blasting Model Secret: Three-Circuit Cardio Workout What to Eat (and Not Eat) Before Your Run This Positive Playlist Will Make You Love Running Celebrity Fitness Here's How Miley Cyrus Stays Healthy, Even While Raging 7 Reasons Serena Williams Is Our Favorite Tennis Player A Peek Inside Taylor Swift's Healthy Lifestyle Celebrity Snaps That Prove Working Out Can Be Fun POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests. Get Results With Our Fitness Newsletter Personalize Running Weight Loss Yoga Working Out Sign up with facebook or By signing up, I agree to the Terms and to receive emails from POPSUGAR.