The Staple Singers were an American gospel, soul, and R&B singing group. Roebuck "Pops" Staples (December 28, 1914 – December 19, 2000), the patriarch of the family, formed the group with his children Cleotha (April 11, 1934 – February 21, 2013), Pervis (November 18, 1935 – May 6, 2021), and Mavis (b. July 10, 1939). Yvonne (October 23, 1937 – April 10, 2018) replaced her brother when he was drafted into the U.S. Army, and again in 1970. They are best known for their 1970s hits "Respect Yourself", "I'll Take You There", "If You're Ready (Come Go with Me)", and "Let's Do It Again". While the family name is Staples, the group used "Staple" commercially.

Source: Wikipedia (https://en.wikipedia.org/wiki/The_Staple_Singers)