All what the title says.
Tell your discovery of band you haven't never heard of and your feelings (even negative thoughts too, just don't take it too far.)
I'll list few I heard just recently, and keeping them in high value.
Isis: Something in my brains whispered this band up. Now I listen this when I'm alone, and/or need some sort relaxing.
Gojira: Heard the song Ocean Planet from friend. Now listening this band too. Some way its music pulls me along.
Mastodon: I don't know how I missed this band, even as reviewers told their album, Crack The Skye
was is epic. Now I know.