Some of the information is Boop-Oop-a-Dooping full of SPOILERS. Boop-Oop-a-Doop! Scat Singing
Scat Singers:
.jpg "Esther Bigeou (1923).jpg (32 KB)")
Scat singing[1] is a vocal style using emotive, onomatopoeic improvisation with wordless vocables, nonsense syllables, or being fully wordless, which is most associated with jazz. Scat singing has antecedents in the West African practice of assigning fixed syllables to percussion patterns and was originated by African-Americans. The style was made famous by Louis Daniel Armstrong, a popular jazz musician.
However it was more popular with African-American female artists of the early 20s, predating Armstrong who had first used this technique in 1924.
Gertrude Saunders is referenced as "paving" the way for other female scat-singing artists as of 1921. She was followed up by Esther Bigeou in 1923, and Florence Mills in 1924. In 1925 child singer and dancer Baby Esther Jones, who is often referenced as predating Betty Boop's "scatting" style of the "Boop" also started using this technique. Years earlier composer Clarence Williams is cited as scatting as of 1915, his wife Eva Taylor a good friend of Florence Mills also used scat-singing in her songs.
During a "$250,000 Infringement Lawsuit" singer Helen Kane told the court that she "invented" scat-singing. Kane said, "It's a form of rhythm I created. There's a bar in the music, and at the end there is a stop."
However interpolating "hot licks" into songs had already been established decades earlier. Which is why the Fleischer Studios and Paramount Pictures sent researchers to Harlem nightclubs to gather witnesses and evidence against Kane.
In a bid to prove to in court that Kane was not the "sole" creator of the "Boop" routine, as in her lawsuit she wanted to lay claim to meaningless sounds such as "Boop-Boop-a-Doop," "Boop-Boop-Pa-Do," "Boop-a-Doop," or simply "Boop" alone. However she forgot to tell the truth, which was that she didn't use a "Boop" in her earlier career, it was a "Poop" and "Poo" routine.