Austin Robert Carlile is an American singer, songwriter and musician from Pensacola, Florida. He achieved prominence as formerly the lead vocalist of Attack Attack! and Of Mice & Men. After leaving Of Mice & Men, he began coaching youth baseball in Costa Rica. A high school athlete, multiple surgeries from Marfan syndrome during his teenage years turned him towards music. In December 2016, Carlile departed from Of Mice & Men due to his Marfan syndrome and the effects that his vocal performances were having on his body.

Attack Attack! is an American metalcore band from Westerville, Ohio, originally formed in 2005 as Ambiance, later changing their name. Attack Attack!'s first release, an independent EP titled If Guns Are Outlawed, Can We Use Swords?, was released in 2007, which led to the signing of the band to Rise Records the same year. They released three full-length albums, Someday Came Suddenly, a self-titled album, and This Means War all through Rise Records. The band left Rise Records in 2012 and disbanded the following year after a farewell tour. On October 19, 2020, the band announced a re-formation, with a mix of returning and new members.