I had a similar experience but it was excruciating... I was at a restaurant for Breakfast and a christmas song came on and it was painful. I couldn't get away and i felt like i was being bombarded with a moron ray.
Maybe you know Paul McCartney's Wonderful Christmastime.
Ugggg.... Damn what a bad song; what a moronic hook it is worse than Sir Paul's Ebony and Ivory.
So, we are finishing up and we were able to get out without suffering the whole song....
...the next night, i wake up in the middle of the night with that stupid 'hook' circleing around in my head. i didn't even get a break with a stupid verse... just.. .
"Simply having a wonderful Christmas time... Simply having a wonderful Christmas time... Simply having a wonderful Christmas time... Simply having a wonderful Christmas time... "
Wanted to jab two, eight-inch stainless steel spikes in my head to make it stop... but, I didn't have any handy.
PeterG