Portrayed by John Belushi. Joliet Jake is the lead singer in The Blues Brothers Show Band and Revue. A scrappy, slightly vindictive psychopath/sociopath man-child with a heart of gold, Jake is certainly not the type of guy you want your daughter to marry. But he'd probably ditch her at the altar anyway. Jake's favorite things in life are beer, fried chickens, and R&B, Soul, Funk, and Early Rock & Roll. He sings from the heart and never looks back.