Showing their Girls Aloud bond is as strong as ever, the pair joined a string of celebrities at the Dominion Theatre in London on Thursday (5 November) for a special showing of the new musical.
Chezza stood out in a gorgeous, strapless black and nude gown, teamed with a chic black blazer thrown over her shoulders. Nicola, meanwhile, went for a pretty wine coloured frock, with black ankle booties.
Elf The Musical is a brand new West End show based on the Will Ferrell movie, about a baby who sneaks into Santa's sack and ends up at the North Pole, where he grows up among the elves (but obvs is significantly bigger!) With Santa's permission, he decides to travel to New York to find his actual parents.
Kimberley's playing the role taken by Zooey Deschanel in the film. "I'm so excited to be getting back on stage for Elf The Musical this Christmas," she said. "It's such a great story and been a huge critical success in New York. I can't wait to be part of the team performing it in London."
The show runs until 2 January.
This is Kimberley's second time in the West End, after she played Princess Fiona in Shrek two years ago. She also released a debut solo album, Centre Stage, featuring her versions of famous songs from musicals.
Elf The Musical originally ran on Broadway in New York City in 2010-2011 and 2012-2013, before touring the US.