Their multi-collaborative series (Eg) and Belong EP were material largely recorded weeks before the lockdowns as a result of the COVID-19 pandemic.

All three band members wrote and composed the album's tracks virtually, starting with what they had before the lockdown and expanding upon it.

So Adam [Levin], Casey and I carved ourselves a space where we could all be as ugly, weird, funny, and f'd up as we wanted to be.

Matt Collar of AllMusic gave the album a 4 out of 5 stars and wrote that "The Beautiful Liar is a quirky, oddly intriguing experience, whose conceptual elements interrupt the corporate pop flow of the album".

It is a superhero origin story, following a blind teenager named Clementine who suddenly loses her father and has to juggle moving to a new school with her new secret friend, Shadow.