As cofounder, guitarist, and producer for British legends Gang of Four, the late Andy Gill fused punk, funk and politics into a groundbreaking sound. Outside the band, he solidified his legacy even further, helping Red Hot Chili Peppers sketch out their funk-metal foundation on their 1984 debut and boosting a new generation of post-punk heroes as producer to 2000s UK stars The Futureheads and Young Knives.