"Parasite" is a song by American hard rock band Kiss, released in 1974 on their second studio album, Hotter Than Hell. The song is one of three songs featured on the album written by lead guitarist Ace Frehley. As one of the album's heaviest songs, "Parasite" was performed on the following tour, but Kiss dropped it from the setlist for the Destroyer Tour and did not play it again until the Revenge Tour in 1992. "Parasite" was performed most recently during the End of the Road World Tour. As Frehley was insecure about his singing ability, he passed that duty to Gene Simmons. In 2016, Frehley re-recorded the track with John 5 for Frehley's solo album Origins Vol. 1.