Ella Henderson was BEAMING to be announced as a SURPRISE GUEST at the #CapitalJBB! This image appears in the gallery:AAA Pass At The Ready? Check Out The Best Backstage Moments From Capital's Jingle Bell Ball With Coca-Cola 6. Ella Henderson was BEAMING to be announced as a SURPRISE GUEST at the #CapitalJBB! (Picture: Capital) 69 images See the full gallery: AAA Pass At The Ready? Check Out The Best Backstage Moments From Capital's Jingle Bell Ball With Coca-Cola