Off Season: How does Demi Lovato maintain her toned figure?

Ever wonder how Demi Lovato keeps her killer bod when she isn't selling out concerts and rocking it on red carpets? We have all the answers in this week's episode of Off Season. We all know that Lovato is a singer, actress, and overall confident woman, but what not everyone knows about the "Sorry Not Sorry" songstress is that she practices Brazilian jujitsu to stay fit. Bad. Ass.