Vocal trio Dave Lambert (1917-1966), John Hendricks (1921) and Annie Ross (1930) focused on the style of ‘jazz vocalise’. Using their voices, they sang musical tracks consisting of lyrics they made up themselves.
Recordings with tenor player Zoot Sims, and with Count Basie’s band.
sources:
L., H. & R. with Zoot Sims: The Swingers (Pacific Jazz WP 1264)
Count Basie and L., H. & R.: Curso (Giganti del Jazz vol.18)
Count Basie with H., L. & R.: Sing Along with Basie (Roulette CdP 7953322)