Mexicali Rose by Gene Autry is in C at 90 beats per minute and runs 1:12 across 28 bars. It uses 8 chords — C, G7, Dm7, C+, F, F6, A7, D7. 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? Mexicali Rose guitar melody tab.