The chart-topping star will be talking dirty to thousands of screaming fans at London's O2 arena. This image appears in the gallery:Jingle Bell Ball 2013 Sunday Line-Up In Pictures 4. The chart-topping star will be talking dirty to thousands of screaming fans at London's O2 arena. Jason Derulo on stage at Wembley 18 images See the full gallery: Jingle Bell Ball 2013 Sunday Line-Up In Pictures