Kelly Osbourne's on a crazy train all her own.

Just a month after suffering a concussion, the daughter of Ozzy and Sharon Osbourne took to Twitter to let her 1.3 million followers know of her latest mishap: a broken left hand.

"I must be the most accident prone/stupid person in the world," Osbourne, 27, tweeted Sunday, explaining she fractured her hand in three places after a nasty fall out of bed at a hotel.