Jessie J shows opens her Summertime Ball set with her massive hit 'Domino'. This image appears in the gallery:Jessie J At The Summertime Ball 2013 - Pictures 3. Jessie J shows opens her Summertime Ball set with her massive hit 'Domino'. Picture: PA 20 images See the full gallery: Jessie J At The Summertime Ball 2013 - Pictures