In 1998, B.B. King and friends recorded a masterful piece of R&B/blues/pop under the stage name "Louisiana Gator Boys."
The all-star performance was featured in the movie Blues Brothers 2000, and on one song, showcased King, Dr. John, Lou Rawls, Eric Clapton, Grover Washington Jr., Bo Diddley, Clarence Clemons, Billy Preston, Koko Taylor, and several others.
The Blues Brothers first film project was released in 1979, and featured performance roles/songs from numerous stars including James Brown, Chaka Khan, Ray Charles, and the legendary John Lee Hooker.
Trivia question answer: Aretha Franklin is featured in both Blues Brothers movies, singing "Think," in The Blues Brothers, and "Respect" in Blues Brothers 2000.