Murphy was a veteran of the Chicago blues scene in the 1940s and '50s, and worked with a wide variety of artists, including Ike Turner, Etta James, James Cotton, Willie Dixon, and Sonny Boy Williamson. But he is best known as Aretha Franklin's soul food chef husband and band guitarist in the 1980 classic comedy The Blues Brothers.
https://www.billboard.com/articles/news/8461313/matt-guitar-murphy-blues-brothers-guitarist-dies-at-88
I want fried chicken and four diet cokes.