The melody of A Beautiful Mess by Jason Mraz runs 366 notes across 67 bars, 4:24 long in E at 60 beats per minute. The tab sits almost entirely in the first two frets, 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? A Beautiful Mess chords and lyrics.