Billy Cox, born on October 18, 1941, in Wheeling, West Virginia, is an esteemed American bassist renowned for his association with the legendary guitarist Jimi Hendrix. Raised in Pittsburgh, Pennsylvania, Cox was influenced by a rich musical environment, with his father being a Baptist minister and mathematics teacher, and his mother a classical pianist. This blend of intellectual discipline and musical sensitivity shaped his early life.

Cox's pivotal encounter with Jimi Hendrix occurred in 1961 while they were both serving in the U.S. Army at Fort Campbell, Kentucky. Their friendship, forged over shared musical interests, led them to form the King Kasuals in Nashville after their military service. Despite Hendrix's departure to pursue a burgeoning career in New York and later England, their bond remained strong.

In 1969, Cox reunited with Hendrix to perform at the iconic Woodstock Festival with the group Gypsy Sun and Rainbows. He continued to collaborate with Hendrix, contributing to the Band of Gypsys and The Cry of Love Tour. Cox's bass playing, characterized by its understated funk groove and jazz-like presence, provided a solid foundation for Hendrix's innovative guitar work.

Beyond his collaborations with Hendrix, Cox's extensive career includes performances and recordings with notable artists such as Sam Cooke, Slim Harpo, and Etta James. He has played on pioneering R&B television shows and has been a member of various house and touring bands.

Cox continues to honor Hendrix's legacy through performances with the Band of Gypsys Experience and the Experience Hendrix Tour. His contributions to music have earned him a place in the Musicians Hall of Fame, and he remains a celebrated figure in rock and roll history.