The melody of Us Against The World by Christina Milian runs 554 notes across 48 bars, 3:58 long in Gm at 75 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? Us Against The World chords and lyrics.