Just that. Jazz. No special term.
While there are several different types of singing without words, a common one is called scat singing. This type started in jazz and has transcended to many different genres.
Jazz does not have alot of singing because It's mostly instruments that's why and that should help your question
singing jazz
Singing jazz
singing blues
Jazz.
Michael Buble!
she was a jazz singer.
The female jazz singer's name is: Betty Carter. Enjoy ! :-)
It was originally in New Orleans home of jazz they were the new Orleans jazz
by singing songs together and working as a team
answer is "scat" And those are the "scat" performers of the group.