"Happy" is a song written, produced, and performed by American singer and producer Pharrell Williams from the Despicable Me 2soundtrack album. It also served as the lead single from Williams' second studio album, Girl (2014). It was first released on November 21, 2013, alongside a long-form music video. The song was reissued on December 16, 2013, by Back Lot Music under exclusive license to Columbia Records, a division of Sony Music.
Arranged by Gary Smith, 2014.