"Soul Power" (James Brown)

"Soul Power" was cut in early 1971 in Washington, DC, with "The Original J.B.'s," i.e. the very first line-up of Brown's backing band, which included future Parliament/Funkadelic members William "Bootsy" Collins (on bass) and his brother Phelps "Catfish" Collins (on guitar).  
Although the Collins Brothers were with The J.B.'s for only a brief time (11 months to be exact), their influence is all over Brown's records from 1970-71, including "Soul Power."  They brought to the equation a gritty sense of rhythm that pushed the Godfather's music deeper into raw funk and further from the polished R&B of Brown's early career.
Just listen to Bootsy's bassline on the song: he's very thrifty with the notes he plays.  In fact, he sticks pretty closely to the tonic the whole time.  Rhythmically, though, he's doing some insanely syncopated 16th notes, playing off his brother's ascending/descending staccato guitar riff and the horn line, which is perpetually moving in the opposite direction of Catfish's riff.
The result is a track that is complex and multi-layered, even though its individual parts seem deceptively simple.