Who sang backup on the song bernadette?

"Bernadette" is a song recorded by the Four Tops that was released in 1967. The lineup of the Four Tops at the time included Levi Stubbs, Abdul "Duke" Fakir, Renaldo "Obie" Benson, and Lawrence Payton. The background vocals on "Bernadette" were provided by other studio musicians and singers who were not part of the Four Tops.