The crowd could NOT get enough of Union J after their EXPLOSIVE arrival to the stage This image appears in the gallery:Summertime Ball 2014: The MUST-SEE Pictures From Our BIGGEST Ball Ever 41. The crowd could NOT get enough of Union J after their EXPLOSIVE arrival to the stage Picture; Danny North 148 images See the full gallery: Summertime Ball 2014: The MUST-SEE Pictures From Our BIGGEST Ball Ever