Naughty but nice! The Saturdays dress up in sultry Santa outfits for their first arena tour
Merry Christmas: The Saturdays rehearse for their arena tour in some festive costumes
All wrapped up: Mollie King and Frankie Sandford add some sugar and spice to the concert
Together again: Una Healy sings solo while Mollie and Frankie get closer to each other
Under the spotlight: Rochelle Wiseman and Frankie go through the motions
All that glitters: Short silver dresses were worked into the routine with Una”s being a looser fitting than the rest
Ready to work: The Saturdays arrive on stage in a large elevator
We salute you: The girl group strike a pose in their sultry office worker costumes
Less is clearly more: Mollie and Frankie show off some revealing outfits in the run-through
Corset girls: The ladies have brought plenty of variation and colour for their first ever arena tour
Hot stuff: A pregnant Una and a slim looking Mollie dance on stage in matching fishnet tights