[Aired: November 15, 2018] The former First Lady was here to talk with Ellen about her oldest daughter Malia's unique prom experience, her sold-out book tour, and how she tried to escape the White House to celebrate the legalization of gay marriage in 2015. Plus, they go to Costco for an impromptu book signing of her new book, Becoming, and play a round of Burning Questions. SUBSCRIBE: https://ellen.tv/3D6Sewq FOLLOW ELLEN: Instagram - https://www.instagram.com/ellendegeneres/ Facebook - https://www.facebook.com/ellentv/ Twitter - https://twitter.com/ellendegeneres TikTok - https://www.tiktok.com/@ellendegeneres Website - null The place for laughs, joy, stars, surprises, and everything Ellen. #ellen #theellenshow #ellendegeneres