On October 2, 2024, the band revealed via social media that they were in the studio with founding frontman Adam Gontier teasing a possibility of new music in the works.

The following day, they officially announced that Gontier had returned to the band full-time, with Matt Walst remaining a lead vocalist as well, making them a quintet for the first time since their 90s genesis as Groundswell.

[8] The opening bass line is reminiscent of their 2006 single "Animal I Have Become" from their second studio album One-X, with screamed vocals from Walst in the beginning of the song.

[1] Gregory Adams of Revolver stated, "Sonically, Three Days Grace's latest single lean into a melodically-bruising modern rock aesthetic, with both singers on high alert as they take stock of the waking world.

"[9] Chad Childers of Loudwire remarked, "The new song 'Mayday' kicks off with a killer bass line before Matt Walst's screams and some more electronic backing blow up the intensity.