"Shellshock" is a single released by British group New Order on 17 March 1986. The song originally appeared on the soundtrack to the movie Pretty in Pink one month prior to its single release. Production is credited to New Order and John Robie, and is loosely inspired by the 1983 Robie-produced R&B club hit, "One More Shot"—a studio project where Robie performed under the band name, C-Bank, and featuring vocals by Jenny Burton.

New Order are an English rock band formed in 1980 by vocalist and guitarist Bernard Sumner, bassist Peter Hook, and drummer Stephen Morris. The members regrouped after the disbandment of their previous band Joy Division due to the suicide of lead singer Ian Curtis. They were joined by Gillian Gilbert on keyboards later that year. New Order's integration of post-punk with electronic and dance music made them one of the most acclaimed and influential bands of the 1980s. They were the flagship band for Manchester-based independent record label Factory Records and its nightclub The Haçienda, and they worked in long-term collaboration with graphic designer Peter Saville.