As part of MasterCard's 'Priceless Surprises', Pharrell made one of his biggest fan's dreams come true. The Neptunes hit-maker showed up to a preschool where children's drama teacher Queen was running a playgroup. While coincidentally dancing to his hit song 'Happy', Pharrell juked his way into the teacher's room and surprised the hell out of the young teacher. She was quickly overcome with emotion as Pharrell took her hand and danced to his song alongside the children in the room.