POPSUGAR Fitness MTV MTV Star Heads to Gym With Nalgene Water Bottle Guess Who Tweeted It by Fitness 7/20/10 6 Shares Like us on Facebook Can you guess which MTV star tweeted this to her followers? "Starting the week right and going to workout!" See a picture of her in action after you guess! Image Source: Getty Read More The CityGuess Who Said ItTwitterWorkoutCelebrityMTVFitnessThe Hills MTV Watch Channing Tatum's Mesmerizing MTV Movie Awards Booty Moment Again . . . and Again Throwback-Worthy Photos From MTV's Rock N' Jock 18 of the Most Shockingly Sexed-Up Moments in VMA History MTV's Finding Carter Star Kathryn Prescott on Why She "Hated" Her Own Teen Years The Hills These Memorable Laguna Beach Fashion Moments Will Make You Cringe 18 Important Life Lessons You Learned From The Hills and Laguna Beach Relationship Reality Show Stars: Now and Then Laguna Beach and The Hills: Where Are They Now? 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 fit with our daily newsletter Working Out Weight Loss Running Yoga Sign up with By signing up, I agree to the Terms and to receive emails from POPSUGAR.