One Life All-In was formed in 2016. Coming up through the hardcore scene, the band applies those very roots, along with experimental, artistic freedom by integrating punk, rock, and metal into their music. Their debut EP, The A7 Session was met with great reviews and succesful European tours. The American-French 4 piece are back in 2020 with their sophomore release, Letter Of Forgiveness, who many praise as their best work to date.