Question: Who sings never say never with justin bieber?
Disambiguated questions and answers: question: Who raps in the song "Never Say Never" with Justin Beiber?
Who sings in the concert film Never Say Never with Justin Beiber?
answer: Jaden Smith
Sean Kingston and Jessica Jarrell, Iyaz, Boyz II Men, Usher, Miley Cyrus, Ludacris and Jaden Smith
Natural Questions answer: Jaden Smith (from the Wikipedia article "Never Say Never (Justin Bieber song)")