McKee, who has written hits for Katy Perry, Ke$ha, Carly Rae Jepsen and Britney Spears, hasn't spoken publicly about her sexual preferences before but the big reveal came about after she confessed to a crush on Justin Bieber in a recent interview with Joan Rivers.
She told the comedienne, "He's really pretty. He looks like a hot lesbian. I'm into that".
Welcome to Atlanta Bieber!
