Cynthia Weil wrote the lyrics and her husband Barry Mann the music.
Cynthia Weil was an American songwriter and lyricist known for her contributions to numerous hit songs from the 1960s and beyond. Born on October 18, 1940, in New York City, Cynthia Weil grew up on the Upper West Side and the Upper East Side of Manhattan in a Conservative Jewish family.
Chicago’s songs combine elements of classical music, jazz, R&B, and pop music. They were formed in Chicago, Illinois, in 1967. Chicago began writing politically charged rock music and later moved to a softer sound, generating several hit ballads. The group had a steady stream of hits throughout the 1970s and 1980s.