“Harden My Heart” is a hit single and the most popular song by the rock group Quarterflash. It was featured on the 1981 Quarterflash album
The record’s video features theatrics in and around an office trailer with dark corridors and swinging light bulbs from the ceiling before it was bulldozed and torched. This song is included in the game Grand Theft Auto and was played twice in the pilot episode of Knight Rider. The song is used in the 2001 film Wet Hot American Summer, which is set in 1981 and was song by Julianne Hough and Mary J. Blige in the film Rock of Ages.