The record also reached number one in Australia, Canada, Switzerland, and the United Kingdom. It debuted at number two on the US Billboard 200, with first week sales of 192,000 copies, and later topped the chart. Critical response to Unorthodox Jukebox was generally favorable many reviewers compared Mars's work to that of his previous album, while others deemed its lyrics shallow. Lyrically, Unorthodox Jukebox revolves around the theme of relationships, incorporating more explicit lyrics and subjects than his previous material. The album was initially planned to be more 'energetic' than his previous work, but ended up presenting a wide range of styles such as R&B, pop, reggae, rock, disco, funk and soul music. Mars's writing and production team, the Smeezingtons, composed the whole record and worked with several past collaborators, Jeff Bhasker and Supa Dups, while enlisting new producers, such as Mark Ronson and Emile Haynie, and no guest vocalists. It serves as the follow-up to Mars's debut record Doo-Wops & Hooligans (2010). It was released on December 7, 2012, by Atlantic Records and was made available to listen to in its entirety for a week before its release.

Unorthodox Jukebox is the second studio album by American singer and songwriter Bruno Mars.

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