Hello Happiness by The Drifters is in A at 100 beats per minute and runs 2:48 across 34 bars. It uses 9 chords — N.C., D, A, E7, E, Bm7, E9, C#m, 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? Hello Happiness guitar melody tab.