This 4-Move Workout Is Jillian Michaels's Recipe For Strong and Sexy Abs

Jillian "Motha F*ckn" Michaels does not play when it comes to working out. Whether you are looking to strengthen and tone your back or want a leg workout that will have you sore for days, she's got you covered.

Jillian knows exactly what the people want and shared an intense ab workout that will strengthen and chisel your stomach. Best of all, it is only four moves! Here's what you do: complete each exercise for 30 seconds in a circuit, and repeat the circuit a total of four times.

If these exercises are too advanced, try the following modifications.