19. Happy – Pharrell Williams
Pharrell Williams wrote, produced and sang the song “Happy.” This song was originally recorded for the Despicable Me 2 Soundtrack Album, but it is also a lead song on his second studio album called “Girl” which was released in 2014. “Happy” was released on November 21, 2013, but it was reissued on December 15, 2013. This song has a mid-tempo and neo soul and has been extremely successful. It became a number-one hit in the United States, United Kingdom, Canada, New Zealand and many more countries. In 2014, this song became the most successful song of the year with 13.9 million sales worldwide.
