Demi Lovato tweeted a photo of her new, shorter haircut.

The 20-year-old "X Factor" judge is all smiles as she shows off her sleek, shoulder-length 'do.

But don't expect Demi to keep those brunette locks the same for long. "I love changing my hair a lot—I think it's fun," she told Allure last year.

And her secret to healthy hair, no matter what length it is? "I really love deep conditioning my hair," she said. "And I wait as long as I can before I need to wash my hair. I think that's the best thing girls can do for their hair because washing it a lot makes your scalp really dry."

PICS OF HER SHORT HAIR HERE