The Nerd's Guitar Guy is a fictional character created by James Rolfe and Kyle Justin for the Angry Video Game Nerd web show. He is portrayed by musician Kyle Justin. The Guitar Guy lives behind the Nerd's couch and sings and plays his show's theme song on his guitar from behind it. The Angry Video Game Nerd theme song was composed by Kyle Justin respectively, in association with James Rolfe, while the show portrays the song as an original piece written by the Guitar Guy.