It was absolutely impossible to prepare ourselves for how GOOD Bruno Mars was going to be! This image appears in the gallery:Summertime Ball 2017 Live: The Best Photos From On Stage At Wembley 93. It was absolutely impossible to prepare ourselves for how GOOD Bruno Mars was going to be! Picture: PA 118 images See the full gallery: Summertime Ball 2017 Live: The Best Photos From On Stage At Wembley