Demi Lovato works out six days a week, sometimes for four hours at a time
EXCLUSIVE: Demi Lovato Reveals She Sees a Therapist Twice a Week Gets Candid About Body Shamers
Demi Lovato flaunts abs in makeup-free selfie
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Demi Lovato seen leaving the gym after her workout session in Los Angeles
Demi Lovato encourages fellow depression sufferers to hit the gym
Demi Lovato is makeup-free at the gym as she goes on exercise binge
Demi Lovato on the Cover of Glamour's March Issue
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OMG, IT'S DEMI LOVATO!