Robert Leo Hackett (January 31, 1915 – June 7, 1976) was an American jazz musician who played trumpet, cornet, and guitar with the bands of Glenn Miller and Benny Goodman in the late 1930s and early 1940s. Hackett was a featured soloist on some of the Jackie Gleason mood music albums during the 1950s.

Source: Wikipedia (https://en.wikipedia.org/wiki/Bobby_Hackett)