Winner: Lady Gaga
Surely you're not surprised? Just look at how many hair and makeup styles she's had in the last 12 months – and you have no idea how difficult it was to narrow it down to these pictures alone – taking inspiration from the catwalk (bows were big for Marc Jacobs too), the movies (Edward Scissorhands anyone?) and the bible by the looks of things. Ah Lady G. There's never a dull moment.
Runners up: Lily Allen, Drew Barrymore, Katy Perry and Rihanna.