The Jackson 5 was Motown's last great pop group and among the most successful singles acts of the '70s. The group consisted of five brothers -- Jackie (b. May 4, 1951), Tito (b. Oct. 15, 1953), Jermaine (b. Dec. 11, 1954), Marlon (b. Mar. 12, 1957), and Michael Jackson (b. Aug. 29, 1958). They grew up in Gary, IN, and were first organized as a group by their father, Joe Jackson, in 1966. In essence, the group was a vocal ensemble centered on Michael, who, though the youngest, was clearly the most talented. The group came to the attention of Motown and was signed in 1969. Their first four singles, "I Want You Back," "ABC," "The Love You Save," and "I'll Be There," all hit number one in 1970; "Mama's Pearl" and "Never Can Say Goodbye" did almost as well in 1971.