The song "The Outsider" by A Perfect Circle is featured in this episode, but the song was also featured in the film Resident Evil Afterlife which also starred Wentworth Miller, who plays Chris Redfield in that movie, and Michael Scofield in this show.
T-Bag calls Michael "Pied Piper". Wentworth Miller and Robert Knepper make appearances in The CW's The Flash show as Captain Cold and Clock King. Another villain name is "Pied Piper".