Kristen Stewart wore a chic Barbara Bui skirt to tape an interview on The Ellen DeGeneres Show that airs Friday! She and her Breaking Dawn: Part 1 costars Taylor Lautner and Robert Pattinson joined their other cast-mates for a chat with the TV host. Ellen even found a way to wedge herself into the promo for the movie, which is out this weekend — check out Ellen in the tub!