Elijah Noll, professionally known as American Teeth, is an American singer, songwriter, and multi-instrumentalist recognized for blending pop-punk, alternative rock, and modern pop. Beyond his solo releases, he has become a sought-after collaborator, working with artists across genres. Noll has collaborated with 5 Seconds of Summer, often alongside producer Colin Brittain. His songwriting is known for its energetic hooks and emotionally charged lyricism, bridging the gap between mainstream pop appeal and alternative edge.

Elijah Noll contributed significantly to ONE OK ROCK's discography as a co-writer and composer on two deeply expressive tracks: LetMeLetYouGo from the Luxury Disease album and Dystopia from DETOX, bringing his melodic sensibility and emotional depth to the band's evolving sound.