We're not sure if they're actually backing dancers or #JCats who crashed the stage... This image appears in the gallery:Jingle Bell Ball 2014: AMAZING Sunday Pictures Feat. Taylor Swift, Ed Sheeran And 5SOS! 38. We're not sure if they're actually backing dancers or #JCats who crashed the stage... Picture: Richard Johnson 89 images See the full gallery: Jingle Bell Ball 2014: AMAZING Sunday Pictures Feat. Taylor Swift, Ed Sheeran And 5SOS!