This version is the actual chart recorded by Michael Bublé on his Crazy Love album, and is itself based on Billy Byers' chart for the Count Basie Orchestra. Please check the writer credits on the album liner notes of you're in any doubt.
We have written out the Piano, Bass and Vocal lines "as performed" by MB's band. The chart is graded as 'Medium' even though the lead Trumpet has a written high F. The 4th Trombone is Bass, and the vocal key is C throughout. There are no sax doubles.