The melody of Elastic Heart by Sia Featuring The Weeknd And Diplo runs 454 notes across 61 bars, 4:13 long in F#m at 130 beats per minute. The tab sits low on the neck, mostly under the fourth fret, one note at a time — no chords to barre and no strumming pattern to keep up with. A piano backing track plays the chords and bass underneath, so the line you are learning sounds like the record even at half speed.
Prefer to strum and sing it instead? Elastic Heart chords and lyrics.