Alexisonfire (pronounced "Alexis On Fire") is a five-piece, Juno-nominated post-hardcore band that formed in St. Catharines, Ontario, Canada[4] in 2001. The band consists of George Pettit (vocals), Dallas Green (guitar, piano, vocals), Wade MacNeil (guitar, vocals), Chris Steele (bass), and Jordan Hastings (drums).

They describe their music as "the sound of two Catholic high-school girls in mid-knife-fight" (a reference to their song "A Dagger Through the Heart of St. Angeles", also the inspiration for their debut album cover art).[5] When the band came out of the underground like an "utterly captivating car-accident-in-progress" in late 2001, it was enough to impress critics[5] and attain a gold certification for their self-titled debut album.[6]

The band has released three more very successful studio albums: Watch Out! in 2004, Crisis in 2006, both which have achieved platinum certification in Canada[7] and Old Crows/Young Cardinals in 2009.