You've got one less 'Problem' now that Ariana Grande's coming to the Ball! This image appears in the gallery:WOAH! See The HUGE Names Confirmed For Capital's Summertime Ball 2015 With Vodafone 3. You've got one less 'Problem' now that Ariana Grande's coming to the Ball! 21 images See the full gallery: WOAH! See The HUGE Names Confirmed For Capital's Summertime Ball 2015 With Vodafone