Plot: It's a party you don't want to miss when Ellen makes a special surprise announcement with incredible prizes for the audience and some viewers at home… maybe even YOU! Plus, the hilarious WANDA SYKES stops by and talks about the release of her DVD, "Wanda Sykes: Sick and Tired. " And, JUSTIN CHAMBERS, one of the hottest stars from one of the hottest shows, "Grey's Anatomy (ABC, Thursday @ 9pm)," talks about the show's new season