She Looks So Perfect by 5 Seconds of Summer is in E at 160 beats per minute and runs 2:44 across 109 bars. It uses 5 chords — E5, E, C#m7, Asus2, N.C.. 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? She Looks So Perfect guitar melody tab.