Mine is (I’ve Had) the Time of My Life, from ‘Dirty Dancing’.
It’s like nails on a chalk board and I can’t even explain why. It’s not even the worst song but it gives me rage and I always have to turn over the radio when it’s on.
Add to that any song by Anastacia, although these days she is rarely played on the radio.
I’m hoping that it’s not just me and suspect everyone has “that song” that they just cannot stand, for no rhyme nor reason. What is yours?