(From Escape album; 1984)
AKA the 5 Minutes Of Funk instrumental. Back in the '90s there was a HHC magazine interview with Whodini breaking down some of their classic singles where they admitted 5 Minutes Of Funk was an instrumental track Larry Smith made as a showcase for their DJ Grandmaster Dee which banged so hard they couldn't resist rhymin' over it. It's all luv to Jalil & Ecstasy for including both incarnations on their Escape LP, but they really shoulda played the background and just let Larry get his groove on for dolo because Featuring Grandmaster Dee is one of the few rap songs which works best as the version without any rapping. Think of it as the O.G The 900 Number in that respect.
1983/1984 really was the only good era for instrumental rap: 70% of the Wild Style OST, West Street Mob's Breakdance - Electric Boogie, Hashim's Al-Naafiysh (The Soul), Davy DMX's One For The Treble, Herbie Hancock & Grandmixer D.ST's Rockit, DJ Red Alert's Hip Hop On Wax Volume 2, and Featuring Grandmaster Dee here.