Today’s Best Tweets: Katy Perry Assures Fans She Is Not Pregnant

Katy Perry is not pregnant. The 'Teenage Dream' pop genius took to Twitter early this morning to tweet the truth in response to some fan questions: nope, she and funny hubby Russell Brand are not expecting a little bubblegum pop baby anytime soon. Also on Twitter, Keri Hilson quoted the great Cee Lo Green's 'F--- You' track, while Jennifer Hudson, Hayley Williams of Paramore and Diddy dished out some decent tweet advice to their thousands of followers.