[7][8] Prior to Sworn In, vocalist Tyler Dennen, drummer/songwriter Chris George, guitarist Eugene Kamlyuk, and bassist Mike Piontek played in a band called "Shift Into Focus".

That same year, Dennen returned to the band as vocalist and recorded a single titled "Let Down" featuring Chad Ruhlig of For the Fallen Dreams.

[11] They toured USA and Canada several times and played as support for bands like Hundredth, Thy Art Is Murder, For the Fallen Dreams, I See Stars, Upon This Dawning, Emmure,[12][13] and Escape the Fate.

[22] On May 18, 2017, the band released a music video for the song "Make It Hurt" following an announcement for their upcoming third studio album All Smiles.

It was also revealed that Eugene Kamlyuk would be returning to lead vocals, and that Chris George would be moving to guitar and the new drummer is Kyle Cholewinski.

On September 14, 2019, the band released a new song called "Shit Talk", their first offering of new material since Tyler Dennen's departure.