Lionel Richie, Luke Bryan, Carrie Underwood, Andrew McCarthy

"American Idol" judges Lionel Richie, Luke Bryan and Carrie Underwood; actor Andrew McCarthy discusses his new book ("Who Needs Friends: An Unscientific Examination of Male Friendship Across America"); 20th anniversary of "Hannah Montana" with ABC News contributor Kelley L. Carter; Deals & Steals with ABC e-commerce editor Tory Johnson.