Patti Labelle and the Bluebelles were Patti Labelle, Sarah Dash, Nona Hendryx, and Cindy Birdsong.
The Bluebelles broke-up when Cindy Birdsong replaced Florence Ballard in The Supremes. The three remaining singers moved along, and reformed as Labelle. When they sang back-up for Laura Nyro on her brilliant R&B cover record "Gonna Take A Miracle," they shot into the limelight.
Their album, "Pressure Cookin'" was a highlight of the 1970s for me, and when I saw them at The Music Hall, in Boston, circa 1974, the show was absolutely stunning. They were the only black, all-girl glam act.
One of the songs on "Pressure Cookin'" is a medley of two well-known political songs of the time: "Something In The Air/The Revolution Will Not Be Televised."
Here it is: