"Locked Out of Heaven" is a song by American singer-songwriter Bruno Mars from his second studio album, Unorthodox Jukebox. It was released as the lead single from the album on October 1, 2012. The song was written by Mars, Philip Lawrence and Ari Levine, and produced by Mark Ronson, Jeff Bhasker, Emile Haynie and The Smeezingtons. It peaked at #1 on the U.S. Billboard Hot 100 Chart in Winter of 2012. The lead single from Bruno's second studio album 'Unorthodox Jukebox' peaked at number 2 in the UK singles chart in November 2012. Read more on Last.fm.