Sigma had a HUGE DJ set... And an even BIGGER surprise, when Ella Henderson popped out on stage!
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Best Jingle Bell Ball Moments... EVER! (2008 - 2015)
4. Sigma had a HUGE DJ set... And an even BIGGER surprise, when Ella Henderson popped out on stage!
If you want surprise acts, you don't get much better than Ella Henderson, who burst on to the stage to sing 'Glitterball' in front of The O2 Arena. (Picture: PA Photos)
