Anybody heard of singers named Scott Walker and Angel Olsen?

Yes, I know Scott Walker of The Walker Brothers. They were before my time, but I really love "The Sun Ain't Gonna Shine (Anymore)"...one heck of a song!

I've been thinking a lot about this lately, but one thing I love about the 60s music is that you had legendary bands/artists like The Beatles, Stones, Kinks, Simon & Garfunkel, et.al. in their heyday,. However, you also had some great music coming from bands/artists like The Walker Brothers, Jay and the Americans, The Vogues, The Outsiders, The Association, et.al. Tremendous music! More people should check out older music, IMO... there's so much great music out there that it's impossible to listen to it all.

I have all Scott Walker’s solo albums.

I've heard of both but don't know any songs.

Yes. Angel Olsen is a little bit meh but I do like a couple of her songs and watched her live in 2018 or so