"As for the rest"; Bing Crosby is "I'm Dreaming of a White Christmas". To a certain extent, our minds are computers that have been programmed; this is especially true in regard to our subconscious; everyone knows exactly what Jesus, Joseph, and Mary looked like. While we can over ride our subconscious, I choose to "go with the flow" on Christmas music.
In regard to "Hello Dolly", all of the above have been more programmed than the original; consequentially, all of the above sound better than the original. If my posts seem contradictory, so are many of the facts of life, just "Go with the flow".
Enjoy the music.