Best Song Ever by One Direction is in D at 115 beats per minute and runs 3:20 across 50 bars. It uses 6 chords — N.C., G5, D5, A5, G, A. 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? Best Song Ever guitar melody tab.