The melody of Jenny From The Block by Jennifer Lopez runs 522 notes across 54 bars, 2:48 long in C at 100 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? Jenny From The Block chords and lyrics.