Almost 60,000 people turned out for the second annual Global Citizeundn Festival at the Great Lawn in Central Park on Saturday. The festival was created as a benefit for the mission of eradicating extreme poverty worldwide, and coincides with the United Nations General Assembly. Held as a marathon music event, this year's guests included Stevie Wonder, Alicia Keys, John Mayer, Kings of Leon, Janelle Monae, and Elvis Costello. Here's a roundup of our favorite Instagram photos from the weekend's blowout event.