The 19-year-old has just tweeted a picture of her newly-shaved head, along with photos of each stage of the haircutting process.
It's a massive change for Miley, who normally goes for the "perfectly groomed tendrels" look.
We wonder if fiancé Liam Hemsworth will like his wife-to-be's new tomboy look.
Check out all the pics of Miley's punk-inspired 'do below and have a vote: hot or not?
