The Chainsmokers are an American DJ/producer duo consisting of Andrew Taggart and Alex Pall. The EDM-pop duo achieved a breakthrough with their 2014 song "#Selfie", which was a top twenty single in several countries. Their debut EP, Bouquet was released in October 2015 and featured the single "Roses", which reached the top 10 on the US Billboard Hot 100. "Don't Let Me Down" became their first top 5 single there and won the Grammy Award for Best Dance Recording at the 59th awards ceremony, while "Closer" became their first number-one single on the chart. They have also won an American Music Award and five iHeartRadio Music Awards. The duo's second EP Collage was released in November 2016, consisting of several previously released singles. Their debut studio album Memories...Do Not Open was released in April 2017.