Literally everything about this costume is stupid, including where the EDM duo wore it. In 2014, the DJs performed at Binghamton University and then made their way to an afterparty at (where else?) a fraternity. The theme was “Ebrola,” which is like if bros somehow had to deal with Ebola, the often fatal disease that was making its way through West Africa and, at the time this party was thrown, had already killed 5,000 people. So, of course the Chainsmokers dressed up in hazmat suits and mustached, mimicking the people who were working hard to help the victims of the disease. Not funny, not cool.