They performed with various acts, including Pacific Gas & Electric, Humble Pie, Ringo Starr, and Pink Floyd.

[1] By 1970, singers Venetta Fields, Sherlie Matthews and Clydie King were in high demand as backing vocalists.

They joined forces and created the Blackberries, which Matthews named after Motown founder Berry Gordy.

[5] Guitarist David Gilmour of Pink Floyd was friends with Humble Pie drummer Jerry Shirley.

Gilmour asked Shirley if the Pink Floyd could hire the Blackberries for two European concert dates; Marriott reluctantly agreed.