Question: The Jackson 5, a popular American family music group formed in 1964 but in which year did the younger band member Michael Jackson pursue a solo career while still part of the group?
Sentence (from "Michael Jackson videography"): American entertainer Michael Jackson (1958–2009) debuted on the professional music scene at age five as a member of The Jackson 5 and began a solo career in 1971 while still part of the group.
Relevant evidence: Yes