Obviously the likes of Jonas Blue and Sigma hit our mystery box game... And squealed. Big time. This image appears in the gallery:11 Of The MUST-SEE Photos From Capital's Monster Mash-Up In Manchester 7. Obviously the likes of Jonas Blue and Sigma hit our mystery box game... And squealed. Big time. 11 images See the full gallery: 11 Of The MUST-SEE Photos From Capital's Monster Mash-Up In Manchester