Rush.

I couldn't stand Geddy Lee's voice enough to appreciate their musicianship. Plus there were some parts in their discography from the 80s and 90s where I really couldn't stand the band as a whole, despite friends trying to cram them in my ear holes.

What changed was really "I Love You Man" and I was like...I need to listen to them again. I started at the beginning of their discography and worked my way through. Still will pass on a lot of songs, but overall, they are incredible musicians, and that just can't be denied.

Helps that I'm a prog rock fan in general.