has taken Hollywood by storm with her girl-next-door looks and quirky personality, but her elegant and gorgeous outfit choices have also seen her regularly appearing at fashion events, mingling with some of the industry's stylish elite.
From her stunning Dennis Basso gown at the 2014 Met Gala
to her elegant black gown at the 2013 Billboard Music Awards, Hayden repeatedly wows on the red carpet.
As the young actress celebrates her 25th birthday
on Thursday, HELLO! Online
take a look back at her top 25 greatest fashion hits to date...
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