The term 'A Holly Jolly Christmas Singer' refers to two singers, Burl Ives and Johnny Marks. Burl Ives was an American singer, actor, and writer who was known for his folk music and Christmas songs. He released a version of the song 'A Holly Jolly Christmas' in 1965. Johnny Marks was an American songwriter who wrote the song 'A Holly Jolly Christmas' in 1962. Both singers have become synonymous with the song and are often referred to as the 'A Holly Jolly Christmas Singer'.