Babel: When Chieko and her friends go to the dance club, it's playing a remixed version of "September".
Drumline: When he first addresses the class, Dr. Lee tells them they're in band because they believe in musicianship, and brings up such artists as John Coltrane, Miles Davis, Stevie Wonder, "and the elements known as Earth, Wind and Fire", which shows how old-fashioned he is when it comes to music.
Revolt TV Animation: In the first video, the protagonist is scrolling through a couple channels until they find a program they like; A disco show with Let's Groove made by Earth, Wind & Fire playing in the background.