Michael Joe Jackson, born August 29, 1958, was eleven when “I Want You Back” was released in November 1969 and sold 2 million copies in its first six weeks.
How old was Michael Jackson when the Jackson 5 released its first song?

Michael Joe Jackson, born August 29, 1958, was eleven when “I Want You Back” was released in November 1969 and sold 2 million copies in its first six weeks.