Wilton Lewis Felder (August 31, 1940 – September 27, 2015) was an American saxophone and bass player, and is best known as a founding member of the Jazz Crusaders, later known as The Crusaders. Felder played bass on the Jackson 5‘s hits “I Want You Back” and “ABC” and on Marvin Gaye‘s “Let’s Get It On“.

Felder was born on August 31, 1940 in Houston, Texas and studied music at Texas Southern University. Felder, Wayne Henderson, Joe Sample, and Stix Hooperfounded their group while in high school in Houston. The Jazz Crusaders evolved from a straight-ahead jazz combo into a pioneering jazz-rock fusion group, with a definite soul music influence. Felder worked with the original group for over thirty years, and continued to work in its later versions, which often featured other founding members.

Felder also worked as a West Coast studio musician, mostly playing electric bass, for various soul and R&B musicians, and was one of the in-house bass players for Motown Records, when the record label opened operations in Los Angeles in the early 1970s. He played on recordings by the Jackson 5 such as “I Want You Back“, “ABC” and “The Love You Save“, as well as recordings by Marvin Gaye including “Let’s Get It On” and “I Want You“. He also played bass for soft rock groups like Seals and Crofts. Also of note were his contributions to the John Cale album Paris 1919, Steely Dan‘s Pretzel Logic (1974), and Billy Joel‘s Piano Man and Streetlife Serenade albums. He was one of three bass players on Randy Newman‘s Sail Away (1972) and Joan Baez‘ Diamonds & Rust. Felder also anchored albums from Grant Green, Joni Mitchell and Michael Franks.