Oorspronkelijk: Ugly Heart by G.R.L.. Maybe I'm just crazy, maybe I'm a fool, maybe I don't know how to love but maybe I do. - Digital Sheet Music.
Vertaling: Ugly Heart door G.R.L.. Kobalt Music Publishing America, Inc.. - Digitale bladmuziek. Plan. Vocal. Chords. Zanger Pro. Stem, bereik.