"Rest In Boogie Wonderland Nov 10,1947-December 24, 2019," Fenton wrote on her Instagram account in a post with a photo of Willis, referring to the 1979 hit she co-wrote for Earth, Wind and Fire. Willis' Instagram account also included a screenshot of an article about her death along with the caption: "We are extremely shocked and devastated to share this news." She died Tuesday of a "cardiac event," The New York Times reported, citing her publicist. Willis, who penned "I'll Be There For You" - the theme for the long-running show "Friends" - as well as several hits by Earth, Wind and Fire, was inducted into the Songwriters Hall of Fame in 2018.

Copyright Agence France-Presse, 2019