"Psycho" was released on the 12th March 2015 as part of the pre-order bundle of the Drones album. The album was made available for pre-order at 18:00 that day, with the track available for almost immediate download.
"Psycho" contains many offensive lyrics in the uncensored version of the song, which will likely hinder its ability to be played over the air. Throughout the song, dialogue of a marine can be heard being shouted at by his commander, encouraging him to become a "Psycho Killer". .