Britney Spears has fallen victim to rude internet pranksters after one of her social networking pages was hacked into on Monday morning.

The Toxic hitmaker's official site on Twitter.com was targetted by hackers who posted an awful adult-only message on the page, according to PerezHilton.com.

The post, which has been removed from the website, read: "Hi y'all! Brit Brit here, just wanted to update you all on the size of my vagina. Its about 4 feet wide with razor sharp teeth."