The Blues Brothers (formally, The Fabulous Blues Brothers’ Show Band and Revue) are an American blues and soul revue band founded in 1978 by comedians Dan Aykroyd and John Belushi, who met and began collaborating as original cast members of Saturday Night Live. The Blues Brothers Musical Revue consisted of lead vocalist "Joliet" Jake Blues (Belushi) and his brother, Elwood (Aykroyd), who played a harmonica that he carried onstage in a briefcase handcuffed to his wrist. The duo were usually dressed in matching black suits, black pencil ties, black trilby hats and sunglasses.
https://en.wikipedia.org/wiki/The_Blues_Brothers