Question: What is the full name of the singer and songwriter who, along with Missy Elliott, had uncredited vocals on the "Young, Fly and Flashy, Vol. 1" album version of the song "Gotta Getcha"?
Sentence (from "Gotta Getcha"): Another remix featuring Usher, Johntá Austin and Missy Elliott was released via mixtapes.
Relevant evidence: No