The music from the movies thus far has been mostly seventies and eighties songs. Billy Joel was in his prime in those decades, and it is then a reasonable assumption that at least one of his songs would have made it onto one of the many mixtapes, or the Zune, from the series. As a lifelong Billy Joel fan, I would love to hear a Billy Joel song in a mainstream movie. A song like Hey Girl would fit perfectly for the finding Gamora storyline set up in Endgame, I would also recommend She's Always a Woman, or She's Got a Way, as both are some of his more popular songs. Thank you for considering my idea.