Princess Eugenie of York turns 22 today!

The princess, who's the younger daughter of Prince Andrew and Sarah, Duchess of York, celebrated her birthday on Thursday night in London with friends at the Hakkasan restaurant in Mayfair.

We're kind of huge Eugenie fans, because the princess never shies away from sparkles or crazy hats.

Eugenie's sister Beatrice (of royal wedding fascinator fame) is 23, older than Eugenie by just 21 months, but Eugenie told the Telegraph in 2008 that the two have very different approaches to style:

"She loves her glamorous dresses and her hair being curly or big - like Mummy's - and I hate volume. I like my hair to be sort of flat. I like just throwing on a pair of jeans and generally being more understated. She is more 'Let's do the glamour.' We're chalk and cheese."

Happy birthday, Eugenie! Check out the princess' style evolution below.

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December 1999
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(Getty photo)