Katy Perry and Miley Cyrus have started a new feud in the pop stars realm: The joke fight all began when Katy put down the Miley concert kiss by telling Australian TV program Sunrise, 'God knows where that tongue has been.'
Here's Miley answer on twitter: ''Girl if ur worried abt where tongues have been good thing ur ex boo is ur EX BOO cause we ALL know where THAT's been!".
And Katy: Oooo gurrrl "I’m gonna give you the BIGGEST spanking when I see you in the UK bb!"
A new war has begun??