"It's a Man's Man's Man's World" is a song by James Brown and Betty Jean Newsome. Brown recorded it on February 16, 1966 in a New York studio and released it as a single later that year. It reached No. 1 on the Billboard R&B chart and No. 8 on the Billboard Hot 100. Its title is a word play on the 1963 comedy film It's a Mad, Mad, Mad, Mad World.

The song's lyrics, which Rolling Stone characterized as "biblically chauvinistic", attribute all the works of modern civilization (the car, the train, the boat, (Like Noah built the ark,), and the electric light) to the efforts of men, but claim that it all would "mean nothing without a woman or a girl". The song also states that man made toys for the baby boys and girls, and makes a comment about the fact that "Man makes Money", from other men. Before the song's fade, Brown states that man is lost in his bitterness and in the wilderness. Brown's co-writer and onetime girlfriend, Betty Jean Newsome, wrote the lyrics based on her own observations of the relations between the sexes. In later years, Newsome would claim that Brown didn't write any part of the song and argued in court that Brown sometimes forgot to pay her royalties.

The composition of "It's a Man's Man's Man's World" developed over a period of several years. Tammy Montgomery, better known as Tammi Terrell, recorded "I Cried", a Brown-penned song based on the same chord changes, in 1963. Brown himself recorded a demo version of the song, provisionally entitled "It's a Man's World", in 1964. This version later appeared on the CD compilations The CD of JB and Star Time.

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