Over the years since 1967 when his barbershop-based do-wop group the Parliaments (named after the members’ favorite cigarette) had a Top Ten hit with “Testify,” George Clinton has worn many hats on top of his signature neon-colored dreadlocks. In the early ’70s he formed the collective of musicians and freaks known as Parliament/Funkadelic. The hopelessly entangled groups which both relied on the genius of core members Eddie Hazel, Bernie Worrell...