has responded to a bizarre lawsuit claiming that she slept with . "I mean, that's news to me. No, I have not, for the record, ever slept with Justin Bieber," she says in a radio interview. "More than that, he has a girlfriend who is really, really hot, so I think he's sorted."
The hookup allegation was made by a man claiming to be 's father. In the suit, the man alleged the Canadian heartthrob cheated on the "" star with and , in addition to two-timing with the glittery singer.