Kimberley Walsh and Ben Forster rehearse Elf
The Broadway import opens at the Dominion Theatre next month
The show, based on the 2003 Christmas classic film starring Will Ferrell, follows one of Santa's elves who discovers he is human and goes to New York to find his father, all the while spreading Christmas cheer.
The production features songs by Matthew Sklar and Chad Beguelin, and originated on Broadway in 2010.
Elf received criticism over the price of their theatre tickets which cost up to £240 for the best seats. In September, the production responded to public and social media demand to introduce a more affordable ticket price and made a limited number of £30 tickets available.