Bands you used to hate but like now
 

I could never be bothered with the majority of Black Metal aside from Darkthrone but have been digging stuff I used to think was pretty goofy like Immortal, Gorgoroth, and Nattefrost.

I used to really hate Against Me! too but their last two albums have won me over.

How about you guys?

Radiohead for me. Their song How to Disappear Completely depresses the hell out of me.