The third installment of Topshop's mysterious 'Who's That Girl' Winter Wonderland campaign has been released.

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Though the guesses have been flooding in on Twitter, we still can't figure out who the star of Topshop's 'Who's That Girl' campaign is.

RELATED: Topshop Launched 'Who's That Girl' Winter Wonderland Campaign

Our only clues so far are the star's sparkly red dress and her obvious reference to Michelle Pfeiffer in The Fabulous Baker Boys.

Who do you think it is? Have your say on Twitter (@Topshop_AU) using the hashtag #WhosThatGirl.