" (...) so it was the first song I released, and that [SUBSTANCE] will be the single that we send to radio. So yeah, one was more about being a statement and this one is more like an official single." ~ Demi on “SKIN OF MY TEETH” and “SUBSTANCE” for Audacy.

— 🎸Demi Lovato News💜 (@DevonnesMuse) July 15, 2022