Get Up, Get Down, Get Funky, Get Loose (Live 1979) by Teddy Pendergrass
This jam was posted by 2 people
but arewenotben was first
Really starts to sizzle at about the 4 minute mark onwards where the band let go and just dig into the ultra-hard groove, worthy of the JBs. Shout outs to the awkward white people dancing in the audience and the guy dressed as a bear.
