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By Kathleen Perricone

Is Rihanna breaking the cardinal rule of being a BFF?

According to a report, the “Stay” singer invited Katy Perry‘s ex-boyfriend, John Mayer, to record a duet with her and they had had dinner.

E! News’ Ken Baker called in to On Air with Ryan Seacrest on Wednesday morning to clarify the news.

“The big problem with this is, yes, Rihanna and Katy are good friends. I really, really think the most important part of this story that is missing is that everyone has to realize is that everything I’m being told is that Rihanna and Drake are hot.”

Although it’s possible that Katy gave Rihanna her blessing, Ken adds, “If indeed that did happen, which we don’t know because we can’t confirm … I think Katy has nothing to worry about. That is going nowhere! And by the way, John Mayer is not the kind of guy that Rihanna would hang out with anyway.”

Ken’s new book, How I Got Skinny, Famous, and Fell Madly in Love, is out now and available for purchase here!