The Chainsmokers are an American DJ duo consisting of Andrew Taggart and Alex Pall.
The duo had a top twenty single in several countries with their 2014 song "#Selfie", reaching number sixteen on the US Billboard Hot 100, number three in Australia, and number eleven in the United Kingdom. They released their debut EP, Bouquet, in October 2015. Their following single "Roses" reached the top 10 on the Billboard Hot 100, while "Don't Let Me Down" became their first top 5 single. "Closer", featuring vocals from Halsey, became their first number-one single on the chart. – Wikipedia