Miley Cyrus Debuts Short New ’Do, Robert Pattinson Surfaces to Promote Cosmopolis, Justin Theroux Proposes to Jennifer Aniston: Week in Review, 8/17

Miley Cyrus set the Twitterverse buzzing when she revealed her new haircut on August 12. Goodbye, long, luscious locks, hello, edgy, half-shaved pixie ’do!

"LOVE my hair ❤ feel so happy, pretty, and free," the singer gushed, before leveling a warning at potential haters. “If you don’t have something nice to say don’t say anything at all.”

We wonder if this drastic change has anything to do with her upcoming return to TV, when she will be joining the cast of Two and a Half Men?