Tell your teenagers they should never skip out on their prom or they could miss out on something like this! The Chainsmokers showed up at an Illinois high school prom over the weekend. They were scheduled to play a show at the Allstate Arena on Saturday evening, which is located across the street from the Rosemont Hyatt Regency. The hotel was hosting a prom on Saturday night for Huntley High School and thanks to one of its students, those that attended the prom got front row seats to a surprise set by The Chainsmokers. According to principal Scott Rowe, a student from Huntley High School managed to get in contact with The Chainsmokers’ manager to request that the Chainsmokers make an appearance at the senior prom and they came through! Enjoy the epic moment below..