“Nature Boy” was writen by Eden Abhez during 1947. It has since become a jazz standard recorded by dozens of major artists.
The defining interpretation was issued by Nat King Cole. It was one of the biggest hits of his career. It became the number one song in the United States, May 15, 1948, and remained in that position for seven weeks.
It was basically Nat King Cole at the piano supporting his own vocal and that is always a good thing.