The big story out of the Game 4 of the World Series in Houston was the impressive pitching by Rangers starter Derek Holland. But one talented Rangers grounds crew member totally stole the show during the short break. The grounds crew member left no dance moves untouched as he went on dancing to the Party Rock Anthem playing on the loud speakers. With Rangers players oblivious to the Dancing Grounds Keeper it just became funnier. Watch the funky moves of the Dancing Grounds Crew Member!