The Chainsmokers - Sick Boy / Sick Boy is the second studio album by American DJ and production duo The Chainsmokers. The album features collaborations with French DJ Aazar and fellow American DJ NGHTMRE as well as co-production from Sly, Chris Lyon, and Shaun Frank, and writing credits from frequent co-writer Emily Warren, Kate Morgan, Drew Love of THEY., Tony Ann, Corey Sanders, and Chelsea Jade. Sick Boy's tracklist is made up of singles gradually released throughout 2018 as an attempt to increase the songs' success.