Watch Pharrell Williams Perform ‘Happy’ at the 2014 Oscars, With Another Cool Hat [VIDEO]Watch Pharrell Williams Perform ‘Happy’ at the 2014 Oscars, With Another Cool Hat [VIDEO]Watch Pharrell Williams rock the stage and perform his smash hit 'Happy,' from 'Despicable Me 2' soundtrack at the 2014 Oscars.Big Boy ChillBig Boy Chill