I get them every so often and tonight’s happens to be Keala Settle singing “This is me” from the film The Greatest Showman. How about you?
Is that your term T? - I call it Brain Stain, used to get them regularly but not for a while. Last was :- took about 2 weeks to 'leave'.
This was still in my head when I woke up this morning after last night's Rhino's Revenge gig when it was played