But Mr Seinfeld insisted that did not intend to be rude.
Speaking after the event, he told Extra: “I’m 63. I don’t know every pop star, I don’t know everyone.
“When you get to be my age and you’ve done a couple things, you have your own reality. In my reality, I don’t hug a total stranger. I have to meet someone, say hello. I have to start somewhere.”
When the interviewer suggested Kesha may have been a fan who had grown up watching his programmes, Mr Seinfeld said: “I’m so flattered by that, but the TV only works one way. I can’t see out who’s watching.”
