hiː ɪz nˈɪkneɪmd sˈɪmpsən bɪkˈʌz dˈʊɹɹɪŋ hɪz kɚɹˈɪɹ hiː wˈoːɹ ɐ hˈɛɹ stˈaɪl sˈɪmɪlɚ tə kɑːɹtˈuːn kˈæɹɪktɚ bˈɑːɹt sˈɪmpsən.
He is nicknamed Simpson because during his career he wore a hair style similar to cartoon character Bart Simpson.