All the drama started when Miley randomly made out with Katy at her recent Los Angeles, Calif. show. Photographed not looking like she enjoyed the smooch at all, Katy later went on an Australian talk show and revealed that she wasn't really feeling the singer's PDA.
"I just walked up to her to give her like a friendly girly kiss, you know, as girls do," Katy said, adding, "and then she like tried to move her head and go deeper and I pulled away."
She continued, "God knows where that tongue has been...We don't know! That tongue is so infamous!"
We totally thought her response was innocent, but Miley apparently didn't think the same way. The twerking queen had some interesting (and kind of b***chy) things to say about Katy's comment 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 been," Miley posted.
She added, "Dontchyouuuu act like you didn't lurvvvvv it."
Ouch. Obviously she was referring to John's man-whore reputation and the fact that he and Katy recently split because of his reported "wandering eyes."
Do you think her comment was necessary or a little too mean? Do you think Katy's comment was rude too? Chime in.
UPDATE: Katy just responded to Miley's diss. Find out what the singer had to say here.