The Saturdays, on the other hand, took a slightly different approach to their on-stage styling...
The fivesome were performing at Wembley Arena as part of their UK tour and stuck to their love of wearing matching uniforms, stepping out in the same sexy secretary dresses (which included Una and her now rather large baby bump.)
Look back at Little Mix and the rest of the X Factor contestants' stage styles here:
Steal Little Mix's chunky boot style at MyDaily Store:
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