Substance (song)

"Substance" is a song by the American singer Demi Lovato from her eighth studio album, Holy Fvck (2022). Island Records released it on July 15, 2022, as the album's second single. Lovato co-wrote the track with Jutes, Laura Veltz, and its producers, Alex Niceforo, Keith Sorrells, and Warren "Oak" Felder. Musically, it is a pop-punk and alternative rock track that incorporates electric guitars and drums. The lyrical content of the song centers on a criticism of society and the lost connection in a virtual world, following the COVID-19 lockdowns and the exhaustion it entailed. It also evokes Lovato's personal struggles with addiction and mental health.

Cody Critcheloe directed the music video for "Substance", which was released alongside the song. With appearances by Paris Hilton and the Lovato impersonator Demetria Cherry, it sees Lovato in several sets and contains a reference to the American anti-drug campaign This is Your Brain on Drugs. Upon its release, the song received praise from music critics, mainly towards its lyrics. Commercially, it reached component charts in New Zealand and the United States. Lovato promoted "Substance" with live performances on various television programs, and as part of the set list of the Holy Fvck Tour (2022) and shows at music festivals.