I have a few ideas. I might go with anything from Prince (Purple Rain) Led Zepplin (Stairway to heave).
Millie is Bon Jovis daughter in law, so “Prayer” could fit too.
But they said they got the song with Kate Bushs help… maybe Peter Gabriel? Or Pink Floyd?
Or Eddie is coming back to save them with Iron Maiden - Troopers or Run to the Hills lol.
Or just a time jump to 1999 and playing Prince - 1999
Any guesses til the final episode?
Imagine they just played DND the whole time and in Season 1 they made a scene where the game ends with Vecna being killed and them sitting in the basement