The melody of Locked Out Of Heaven by Bruno Mars runs 302 notes across 79 bars, 2:44 long in Bb at 145 beats per minute. The tab sits moving up the neck in places, 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? Locked Out Of Heaven chords and lyrics.