Mark Kasprzyk, better known by his stage name Redlight King, is a Canadian musician. His song "Comeback" is featured on Avengers Assemble: Music from and Inspired by the Motion Picture, an album with music inspired by (but mostly not used in) The Avengers and his song "Redemption" is featured on Iron Man 3: Heroes Fall – Music Inspired by the Motion Picture an album with music inspired by (but not used in) Iron Man 3.