The Union J boys arrive on that #CapitalSTB crowd for their HUGELY anticipated performance This image appears in the gallery:Summertime Ball 2014: The MUST-SEE Pictures From Our BIGGEST Ball Ever 40. The Union J boys arrive on that #CapitalSTB crowd for their HUGELY anticipated performance Picture; Danny North 148 images See the full gallery: Summertime Ball 2014: The MUST-SEE Pictures From Our BIGGEST Ball Ever