Ed Sheeran rehearsing at the 2011 Jingle Bell Ball ahead of his performance at the O2 Arena. This image appears in the gallery:Backstage At The 2011 Jingle Bell Ball (Sunday) 18. Ed Sheeran rehearsing at the 2011 Jingle Bell Ball ahead of his performance at the O2 Arena. Picture: Richard Johnson 39 images See the full gallery: Backstage At The 2011 Jingle Bell Ball (Sunday)