Unorthodox Jukebox peaked at number one in the US Billboard 200 .
In 2011 , Mars recorded the single `` It Will Rain '' for the film The Twilight Saga : Breaking Dawn – Part 1 ( 2011 ) .Mars ' second album , Unorthodox Jukebox ( 2012 ) , peaked at number one in the US , Australia , Canada , Switzerland , and the UK , winning a Grammy Award for Best Pop Vocal Album .
Bruno Mars