Kourtney Kardashian is an expectant mom on the move. One week after her third pregnancy was announced, the eldest Kardashian sister stepped out in the Hamptons in New York to film her upcoming E! reality show, Kourtney and Khloé Take the Hamptons. In other must-see celebrity moments, Reese Witherspoon and Sofia Vergara couldn't stop laughing on the set of their new movie, Lady Gaga managed to find a new look we've never seen on her before, and David Beckham touched down in Miami. Keep reading to see all that and more!