Love this thread!
I have constant ear worms throughout the day triggered by what I hear, it can be a song on the radio or TV, but more likely from just a comment made that triggers it off. Eg. ‘Let’s go!’ = ‘let’s go fly a kite’ (Mary Poppins)
It also happens from me doing something Eg turning the car engine on = ‘keep the motor running, head out to the highway (Born to be Wild)
Obviously now I’ve read the thread I’m hearing ‘It’s a Sin’, but will also do a verse of ‘There was a mouse, (where) there on the stairs’ too