A Beautiful Lie is the second studio album by American rock band 30 Seconds to Mars. The album was released on August 30, 2005 through Virgin Records and was produced by Josh Abraham. It produced four singles, "Attack", "The Kill", "From Yesterday", and "A Beautiful Lie"; of which three of those four singles managed to chart within the top 30 on the U.S. Modern Rock chart, with "The Kill" and "From Yesterday" entering the top three.
A Beautiful Lie is different from the band's self-titled debut album, both musically and lyrically. Whereas the eponymous concept album's lyrics focus on human struggle and astronomical themes, A Beautiful Lie's lyrics are "personal and less cerebral" as well as the music is heavily atmospheric and takes on a youthful, more post-hardcore approach by introducing occasional intense screaming vocals and deemphasizing synth background effects.