The pop princess went for a futuristic look in a white corseted top with a sheer overlay - not exactly festive but we love the bold red lips and volumised hairdo.
However, it was The Saturdays who really embraced the Christmas spirit. The lovely ladies sparkled in matching red, black and gold ensembles and proved that there's no such thing as too many sequins on the red carpet. It's also safe to say that the girls outdid the boys in the style stakes - JLS kept their look cosy and casual in jumpers and a bomber jacket.
Which pop star looked the best? Leave a comment below.