It's not unusual because we are conditioned to think it is needed and normal since children, but it is a media thing. I think people would be happier if we knew we could stand on our own too.
So a man goes to a doctor and says, "Doctor I've got a problem. I can't stop singing 'What's New Pussycat'. What's wrong with me?."
The doctor replies "You've got Tom Jones syndrome."
The man says "I've nevever heard of that, is it common?"
The doctor goes "It's not unusual..."
Thank you I'll be here all week.
(Edited 58 minutes later.)