James Jamerson (January 29, 1936 – August 2, 1983)
"the most important single body of bass work in the history of popular music."
He was the uncredited bassist on most of the Motown Records hits in the 1960s and early 1970s (Motown did not list session musician credits on their releases until 1971) and he is now regarded as one of the most influential bass players in modern music history. He was inducted into the Rock and Roll Hall of Fame in 2000. He performed on 30 number-one hits, more than any person or group in music history, and on more than 70 number-one R&B hits, also the most ever.