Box Car Racer was an American post-hardcore band formed in San Diego, California, in 2001. The band was a side-project of Blink-182 members Tom DeLonge and Travis Barker, with David Kennedy of Hazen Street completing the band's studio lineup. A friend of Barker, Anthony Celestino later joined the band as a bassist. DeLonge created the project to pursue darker ideas he felt unsuited to his work with Blink-182.