Jean Shepherd (1921-1999) was an American raconteur, radio and TV personality, writer and actor. From 1956 to 1977, he broadcast on WOR, a talk format radio based in New York City.
Here are 2 excerpts of the program of the 7th of April, 1965. In the first one, he plays the nose flute over After You've Gone (Turner Layton), and in the second, tells his own story about nose flute.
Here is a 1970 picture of Jean Shepherd, wearing his jaws harp around the neck.