Jason Segel, Jennifer Morrison, Cirque du Soleil

He's a star on the hit series "How I Met Your Mother," and his pet project, "The Muppets," just won an Academy Award! JASON SEGEL is riding high! He's here to discuss his hilarious and heartbreaking new film, "Jeff, Who Lives at Home." Then, JENNIFER MORRISON was the first woman who tried to tame Dr. Gregory House on FOX's "House." She's traded in her scrubs for a fairytale adventure in "Once Upon a Time," and she's telling Ellen all about it. Plus, an amazing juggling act that's so impressive it could only be from Cirque du Soleil, ANTS, the foot-juggling act from "OVO" will be here to wow the crowd!