Andy Gill, founding member, guitar player, and "Supreme Leader" of the hugely influencial post-punk band, Gang of Four, has died. He was 64. Members of the current Gang of Four line-up tweeted the following: Andy Gill. pic.twitter.com/DHNCz5lAe6 — GANG OF FOUR (@gangof4official) February 1, 2020 “This is so hard for us to write, but our great friend and Supreme Leader has died today,” Gang of Four wrote.