Rihanna Cleavage Upstaged by Fashionable Balls

5/7/2014 12:02 AM PDT BY TMZ STAFF
050614_tv_met_launchA man dropped his trench coat and ran through the streets wearing nothing but a hot pink mankini and a gold chain at the biggest celeb event in NYC Monday Night.

But he wasn’t the only one who showed his ass! Check out what Rihanna wore!