“Few cinematic cameos have been more galvanizing than Cab Calloway’s in The Blues Brothers. In the 1980 film, he plays a janitor who suddenly dons white tie and tails, gets up on stage in front of an admiring group of long-haired rock and soul musicians, and proceeds to steal the show not only from its stars, Dan Aykroyd and John Belushi, but also from James Brown, Ray Charles, and Aretha Franklin, all of whom made cameo appearances of their own. How? By singing ‘Minnie the Moocher,’ a swinging lament for an opium addict he had written a half-century earlier…”