SEOUL, SOUTH KOREA - DECEMBER 24: PSY performs onstage during the 'All Night Stand 2015' on December 24, 2015 in Seoul, South Korea. (Photo by Chung Sung-Jun/Getty Images)
SEOUL, SOUTH KOREA - DECEMBER 24: PSY performs onstage during the 'All Night Stand 2015' on December 24, 2015 in Seoul, South Korea. (Photo by Chung Sung-Jun/Getty Images)