In all honesty, I wish pop stars/celebrities would just realize that singing the National Anthem is NOT about them and they should simply sing the melody as written. No weird trills, vocal gymnastics or kooky arrangements. If you really want to hear an amazingly wonderful rendition, try to find a recording of Huey Lewis and the News singing it around 1984 or 1985 from either a Giants game or the All Star game. Beautifully arranged for 5 voices, performed acapella with the melody shining through. I have never heard anyone do it better.