Jessie J says she prays she doesn't fall over or off anything on the Summertime Ball 2012 stage. This image appears in the gallery:Jessie J Live At The Summertime Ball 2012 - Pictures 10. Jessie J says she prays she doesn't fall over or off anything on the Summertime Ball 2012 stage. 17 images See the full gallery: Jessie J Live At The Summertime Ball 2012 - Pictures