Austin Robert Carlile is an American singer who achieved prominence as the former 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. In 2026, Carlile returned to music as a solo artist, releasing several independent singles.