As the entire Twitternet has seen by now, Miley Cyrus got a haircut. The star happily chopped off her platinum blonde long bob into an edgy pixie cut reminiscent of model Agyness Deyn's. "Never felt more me in my whole life," she tweeted.

So why did the news cause such a stir, leading "OMG Miley" to trend worldwide? Even on a night chock full of entertainment news -- the 2012 Olympics came to a close, the Spice Girls reunited on stage for a bombshell performance, and Jennifer Aniston said yes to Justin Theroux's proposal -- Miley's hair took center stage on Twitter.

Reactions to her new platinum pixie were emotionally charged, to say the least. A few loyal fans loved the new look, but many of her young followers had only rude things to say. Negative and hurtful comments streamed in one after another, and eventually, Cyrus herself responded.

"If you don't have something nice to say don't say anything at all. My hair is attached to my head no one else's and it's going bye bye :)" Miley tweeted to her followers. Click through the slideshow below to see a few of the responses from Twitter yesterday evening.

At HuffPost Teen, we think it's important to rock whatever haircuts, clothes and accessories make you feel the most confident. So, if Miley says the new 'do makes her happy -- we think that's a definition of "style" we can all get behind. Who agrees? Share your thoughts in the comments below or tweet @HuffPostTeen.

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  • Miley Ray Cyrus

  • Belieber's Always

  • Laura ∞

  • MileyCyrus.bz

  • Michael Brereton EFC

  • paulie

  • Prince Awesome ☯

  • Lily Luna Potter

  • Little Skyscraper ♥

  • emilia

  • A M Y †

  • ✌Ashley Kemper✌

  • Rocking My Tiara ♕

  • Miley Cyrus

  • Hanna Eugenio