EXTRA TV Video: Britney Spears Gives Backstage Tour of Her Vegas Show, Dares Mario to Do Bungee Stunt

“Extra” host Mario Lopez got a backstage tour of Britney Spears’ revamped Las Vegas show, “Piece of Me,” at Planet Hollywood Resort & Casino. During the exclusive tour, Britney challenged Mario to do one of her bungee jump stunts from the show. Watch!