30 Seconds to Mars is the debut studio album by American rock band Thirty Seconds to Mars. It was first released on August 27, 2002, by Immortal Records and distributed by Virgin Records. The album was produced by Bob Ezrin, Brian Virtue, and Thirty Seconds to Mars, and was recorded in rural Wyoming during 2001 and early 2002. It had been in the works for a couple of years, with lead vocalist Jared Leto writing the majority of the songs.

Thirty Seconds to Mars is an American rock band from Los Angeles, California, formed in 1998. The band consists of brothers Jared Leto and Shannon Leto. During the course of its existence, it has undergone various line-up changes with the Leto brothers being the only consistent members.