The melody of All I Want For Christmas Is My Two Front Teeth by Don Gardner runs 274 notes across 39 bars, 2:20 long in C at 120 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? All I Want For Christmas Is My Two Front Teeth chords and lyrics.