Mine is Sympathy For The Devil Song by The Rolling Stones
I could not take the background singers and it would enrage me!
hoo hooo hoo hooo hoo hooo for 6 solid minutes!.
I studied the song and the story behind it and became at piece with it eventually.
I just heard it on a YouTube channel and realized I like it now.
I used to despise a lot of stuff by David Bowie, David Byrne, Sting, Led Zeppelin. Then I grew up.