On a similar note I had a friend who couldn’t stop singing “What’s new Pussycat”, “Delilah” and “The Green Green Grass of Home”. He’s been diagnosed with Tom Jones Syndrome. I’ve never heard of it but apparently it’s not unusual.
The wife's been having disturbed nights recently. She keeps dreaming and shouting things like "hobbit!", "Gandalf!" and "Mordor!" through the night.
She's been Tolkien in her sleep....