 And Jack Benny had a singer who would come on and perform a lot more of the time of, like, St. Patrick's Day and some of the Christmas songs, probably, but that, of course, being Dennis Day. Dennis Day was a big part of the Jack Benny Show, and he would show up every once in a while and play a little patriotic ditty, like this one he did on the Jack Benny Show in 1947.