Little Willy by Sweet is in E at 110 beats per minute and runs 3:13 across 42 bars. It uses 8 chords — E, A, B7, B, N.C., F, Bb, C7. 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? Little Willy guitar melody tab.