 The style of the album combined progressive metal and space rock with influences and elements from new wave and electronica, utilizing programming and synthesizers. According to Jared Leto, the band wanted to create "something that had cohesiveness and kind of an atmospheric musical story to it". He identified groups that had a sense of identity and atmosphere as being influential on the album's songwriting. He cited classic stoner rock artists, to which he and his brother Shannon had listened while growing up. Eventually, they gravitated toward more conceptual work like Pink Floyd, David Bowie and The Cure. Thirty Seconds to Mars also drew influences from acts such as Björk, Rush, and Depeche Mode; according to Shannon Leto, the inspirations derived from "mostly big conceptional bands; bands that had depth; bands that were dynamic".
