The "Motivation" singer puts meaning to that exact word with these tummy-toning moves from her trainer
Ultimate Oblique Toner
Lie on your left side, body in a straight line, with your left arm extended. While squeezing in your abs, lift your right leg up, then your left leg to meet it. Reach down your side toward your toes with your right arm, keeping your navel pulled in. Repeat 15 reps on each side.
Credit: Marc Royce