Neo. The Only. The One.
THE ONE
This is hard, way harder than you would think.
When You rock my world first came out, I HATED it. But about a month later, I was hitting that Michael Jackson kick just like Chris Tucker and I loved the song.
As a youngster, I didn't like Smooth Criminal but now it's one of my top 10 MJ songs.
Any song that I previously didn't like, I can find a reason to still appreciate it
EDIT
Oh wait. I never liked Rockin Robin