AOL Sessions Undercover is an extended play (EP) and live album by American rock band Thirty Seconds to Mars, released in the United States on March 13, 2007 by Virgin Records. It features an acoustic performance taped on August 23, 2006 for the television series Sessions@AOL. The show's purpose was to present name artists, and feature them acoustic or stripped of studio equipment. The extended play includes acoustic versions of two songs extracted from Thirty Seconds to Mars second studio album, A Beautiful Lie (2005) and a cover version of a song by The Police.