Pharrell opens his set with the massive hit single 'Lose Yourself To Dance'. And the crowd did! This image appears in the gallery:Pharrell Williams Live At The Summertime Ball 2014 3. Pharrell opens his set with the massive hit single 'Lose Yourself To Dance'. And the crowd did! Picture: PA 12 images See the full gallery: Pharrell Williams Live At The Summertime Ball 2014