Alan Rubin (February 11, 1943 – June 8, 2011), also known as Mr. Fabulous, was an American musician. He played trumpet, flugelhorn, and piccolo trumpet.Rubin was a graduate of the Juilliard School of Music in New York. He was a member of the Saturday Night Live Band, with whom he played at the Closing Ceremony of the 1996 Olympic Games. As a member of The Blues Brothers, he portrayed Mr.