Heartbreak Girl by 5 Seconds of Summer is in Eb at 166 beats per minute and runs 3:19 across 72 bars. It uses 9 chords — N.C., Bb, F, Gm, Eb, Gm7, Ebsus2, Dm, 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? Heartbreak Girl guitar melody tab.