The melody of I Care by Beyoncé runs 453 notes across 50 bars, 3:44 long in Em at 90 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? I Care chords and lyrics.