Freddie Mercury was a rock singer who was born in 1946. While in a bubble prison, Iris Wildthyme imagined performing a duet with Elton John at Mercury's 40th birthday party in 1986. (AUDIO: Whatever Happened to Iris Wildthyme?)
Ace believed that the Elder God Weyland resembled Mercury due to his moustache. (AUDIO: Gods and Monsters)
"Don't Stop Me Now," a song written and originally sung by Mercury, was performed by a singer on board the space-faring Orient Express.