The Chainsmokers headed to Miami armed with Instagram and a No.1 single for some sunshine, sand, and… plenty of butts. Armin van Buuren, Nicky Romero, Dyro, Dave Nada, and even Ashley Sky wanted to get in on the summertime action so the duo invited them to be in their video. They were like, OK, but first let me take a #selfie.#Selfie by The Chainsmokers is out now http://bit.ly/1owcxVm