Pharrell to perform 'Happy' at Oscars

Pharrell Williams will perform his Oscar-nominated song 'Happy' at this year's Academy Awards.
The track, which is the anthem for animated film 'Despicable Me 2', is up for a Best Original Song at the awards on March 2 and producers have now announced Pharrell will also take to the stage to perform live at the Dolby Theatre in Los Angeles.