Chicago - I’m a Man | Live at Tanglewood (1970) Been a minute ❤️🫶 “I’m a Man” is a song written by Steve Winwood and record producer Jimmy Miller. It was first recorded in 1967 by the Spencer Davis Group; Winwood sang lead vocals and played keyboards. It has been recorded by many other performers over the years, most successfully by Chicago, whose version charted at No. 8 in the UK in 1970 and No. 49 in the US in 1971. Chicago (then known as Chicago Transit Authority) recorded a cover version o