Billy Preston (2 September 1946 - 6 June 2006) was an American soul and rock singer, famously known as a child prodigy pianist before releasing several rnb hits (including #1 smashes "Will It Go 'Round in Circles" and "Nothing From Nothing") and working with classic artists such as Aretha Franklin and The Beatles. He notably performed with Mahalia Jackson at the age of 16 and appeared as a young W.C. Handy in a 1958 biopic. His first solo record was a gospel album called '16 Year Old Soul'.
These are videos from concerts where Billy Preston played, so they may be of other bands that played the concert as well.
The Concert for Bangla Desh (Early Show) Aug 1, 1971 New York, New York, United States Embedded by Callaghanmichael Us