"The Rhythm of Life" is a song from the musical "Sweet Charity" (1966). In 1969, the Supremes and the Temptations covered the song for their "G.I.T. on Broadway" television special and album. Their version was released as a single in Australia and New Zealand, where it was a top 5 and top 20 hit, respectively.

"Sweet Charity" is a musical with music by Cy Coleman, lyrics by Dorothy Fields and book by Neil Simon. It was directed and choreographed for Broadway by Bob Fosse starring his wife and muse Gwen Verdon alongside John McMartin. It is based on the screenplay for the 1957 Italian film "Nights of Cabiria". However, whereas Federico Fellini's black-and-white film concerns the romantic ups-and-downs of an ever-hopeful prostitute, in the musical the central character is a dancer-for-hire at a Times Square dance hall.

The musical premiered on Broadway in 1966, where it was nominated for nine Tony Awards, winning the Tony Award for Best Choreography. The production also ran in the West End as well as having revivals and international productions.

More Info: en.wikipedia.org