Life On Mars? by David Bowie is in Eb at 124 beats per minute and runs 2:00 across 42 bars. It uses 23 chords — F, Am, Adim, D, Gm, Bb, C7, Ab, 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? Life On Mars? guitar melody tab.