Question: Keith Justin Hetrick has worked with an American rapper who is best known for "Watch Me (Whip/Nae Nae), which reached what number on the Billboard Hot 100?
Sentence (from "Outkast discography"): In 1992, Outkast became the first hip hop act to be signed to the label LaFace Records; with their first studio album "Southernplayalisticadillacmuzik" (1994) that debuted at number 20 on the US "Billboard" 200.
Relevant evidence: No