Bradley Cooper was back in the Big Apple yesterday taking a solo stroll in Manhattan before hitting the red carpet at the 2011 Met Gala last night. He spent the weekend in Washington DC and was one of the many stars in attendance at Saturday night's White House Correspondents' Dinner. Bradley dined with his former He's Just Not That Into You costar Scarlett Johansson, who later left hand in hand with boyfriend Sean Penn. Bradley has been going stag since his breakup with Renée Zellweger, though the exes were both at last night's star-studded event. He's also currently in the running for Sexiest Male Celebrity in the PopSugar 100 — don't forget to cast your votes for a chance to win one of four awesome prizes! Bradley Cooper will get plenty of attention from ladies and fans all around the globe later this month when his raunchy bachelor party comedy The Hangover Part II hits theaters on May 26. For now, Bradley is testing a new mustache and beard combo amid rumors he's going for the role of Tom Buchanan in The Great Gatsby now that Ben Affleck is out.