 Formed while still in high school in 2003, All Time Low began covering songs by pop punk bands such as Blink-182.The band's line-up included Alex Gaskarth on vocals, Jack Barakat on guitar, TJ Ihle on lead guitar and backing vocals, Chris Cortilello on bass, and Rian Dawson on drums.Cortilello and Ihle left the band, resulting in the band laying dormant until Zack Merrick joined on bass and Gaskarth picked up guitar.