The melody of Part Of Me by Katy Perry runs 420 notes across 60 bars, 2:59 long in Bb 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? Part Of Me chords and lyrics.