Many know Katherine Heigl from her days on Grey's Anatomy. Though she won a Primetime Emmy Award for her portrayal of Doctor Izzie Stevens, something has since overshadowed her work on the hit ABC series . . . her attitude. The actress is reportedly a diva, and has done everything from make demands on set to trash her own projects. As new dramas ignite and surface, we can't help but wonder if Heigl's career is over.