‘Grey’s Anatomy’: Katherine Heigl Says Karev and Izzie Ending Up Together Is an ‘A-Hole’ Move (Exclusive)

Katherine Heigl talks to ET’s Katie Krause about Izzie Stevens and Alex Karev ending up together on ‘Grey’s Anatomy’ and if she would ever return to the medical drama. She also teases her new series, ‘Firefly Lane,’ out Feb. 3 on Netflix.