Sculpt a chiseled midsection with fitness expert Natalie Raitano's ultimate abs exercises

Check out the video above from the Summer Shape Up event to see Natalie Raitano, fitness expert and master trainer for Jillian Michaels' Body Shred and Barry's Bootcamp, share her secret for flat, toned abs. Raitano proves you don't necessarily need to lie down to target your abs with these three moves straight from her NAT-orious Abs class, which is designed to target your upper abs, obliques, and those hard-to-hit transverse muscles.