Babs Gonzales (October 27, 1919 – January 23, 1980), born Lee Brown, was an American jazz vocalist of the bebop era notable for writing the song “Oop-Pop-A-Da”, which was recorded and performed by his band, Three Bips and a Bop, and was later made famous by Dizzy Gillespie. He was an exponent and pioneer of vocalese, an example of which is his version of the Charlie Parker bop standard “Ornithology”.
and here’s the song by Charlie Parker: