I clearly remember the first time I heard this song. I was about six years old, and we had just gotten the Goodyear album “The Great Songs of Christmas” volume 6. The album had recordings of Christmas music from many popular artists, but the one that impressed me most was Andy William’s rendition of “Do You Hear What I Hear?” I’d never heard it before, and fell in love with the song. I vaguely remember singing it all the time.
According to that most trusted of online resources, Wikipedia, the song was written in 1962 by Noel Regney and Gloria Shayne as a plea for peace right after the Cuban Missle Crisis. The Harry Simeone Chorale first recorded the song, but it really took off with a Bing Crosby recording in 1963.