The first song that I learned was Them Bones, a hit from early 1947 for Waring's Pennsylvanians, who took a Delta Rhythm Boys spiritual and gave it the Spike Jones treatment.
Yeah, I knew that song too, but not when I was two years old. Jesus Loves Me was probably the first song that I learned, followed by The B-I-B-L-E. . My family was full of Sunday school teachers and choir directors.