Keith Jenkins spent 12 years playing guitar in James Brown's final band, The Soul Generals. He was enlisted for Get On Up to give the 80 or so musicians cast as members of Brown's legendary bands, The Famous Flames and The JBs, a taste of life working for the Godfather of Soul.
"We wanted them to feel like a real band," says Margaret Yen, Get On Up's music supervisor. "The James Brown band, whatever incarnation it was, rehearsed and played all the time. I wanted the same kind of bonding and camaraderie, and I wanted it reflected on camera."