The Legends Of Music on Instagram: "Kool & the Gang performing “Spirit of the Boogie” Live on the 30th of May, 1975 on the Midnight Special This funky soul track is a call back to the group’s 1973 hit “Jungle Boogie” thanks to growling vocals and effects from Kool & the Gang’s technician Donal Boyce, aka “The Boogie Man”. Ronald Bell, the Gang’s musical director and saxophonist, told Blues & Soul in 1975: “We were trying to get a harder sound using double bass - synthesizer bass and Kool’s bass.