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Health trainer�Yoon Sun Hee demonstrated a workout routine along to Wonder Girls' "Tell Me" for those that want a sexy backside. At 48 years old, she showed a leg-lifting routine that women of any age can do to create and maintain a pretty leg line. Hara and Youngji also followed along, impressing viewers with their flexibility and Hara shared that she felt her abs getting more defined thanks to the workout.

Check out the workout dance below (starts at 35:40)!