POPSUGAR Fitness Celebrity Fitness Singer Wearing a Gray Tracksuit Guess Which Celebrity Singer Looks Workout-Ready? by Michele Foley 6/08/13 25 Shares Like us on Facebook Sign up for our daily newsletter > Follow us on Pinterest Can you guess which sweet pop songstress looked ready to hit the gym? Image Source: FameFlynet Read More Celebrity FitnessGuess Who Celebrity Fitness Demi Lovato Discusses Finally Feeling Proud and "Confident" of Her Body See How UFC Champ Ronda Rousey Got Her Start at Age 11 A Protein-Rich, Celebrity-Approved Mint Chip Smoothie Khloé Kardashian Shows Us Her Workout, and It Looks Pretty Hard 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 Working Out Yoga Running Weight Loss Sign up with facebook or By signing up, I agree to the Terms and to receive emails from POPSUGAR.