I’m Sitting On Top Of The World by Al Jolson is in Bb at 160 beats per minute and runs 1:37 across 34 bars. It uses 19 chords — C+, F, Fmaj7, F7, Bb, Bb6, Ddim, Dm7, and a few more. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? I’m Sitting On Top Of The World guitar melody tab.