The Chainsmokers are an American DJ duo consisting of Andrew Taggart and Alex Pall. Their 2014 single "#Selfie" reached No. 16 on the US charts and No. 11 on the UK charts while their 2015 single "Roses" reached No. 6 on the US charts. They released their debut EP, Bouquet, in October 2015. In February 2016, the duo released the single "Don't Let Me Down", featuring vocals from Daya. The song peaked at No. 3 on the US Billboard Hot 100, their highest-charting single to date in the US. Their latest single "Closer", released in July 2016 featuring vocals from Halsey, has so far reached No. 6 on the US Billboard Hot 100.