SUPER MODEL ABS

Wonder how super models get such amazing abs? Here's a tip Heidi Klum uses via Fitness.com

1) Lie face up holding a stability ball with your arms extended over you head

2) Raise arms and legs to meet over your abs and place the ball between your ankles

3) Repeat movement, taking the ball into your hands

4) do 3 sets of 10 3 times a week

And voila!