1 in the United States, United Kingdom, Canada, Ireland, New Zealand, and 19 other countries. The song has been highly successful, peaking at No. 'Happy' is an uptempo soul and neo soul song on which Williams's falsetto voice has been compared to Curtis Mayfield's by critics. The song also served as the lead single from Williams' second studio album, Girl (2014). The song was reissued on December 16, 2013, by Back Lot Music under exclusive license to Columbia Records, a division of Sony Music. The song was first released on November 21, 2013, alongside a long-form music video. ' Happy' is a song written, produced, and performed by American singer Pharrell Williams, released as the first and only single from the soundtrack album for the film Despicable Me 2 (2013).