My favorite band is Mastodon. They're normally classified as progressive metal, sludge metal, whatever you like. I call them progressive. I think progressive as a genre interests me a lot; Bands like Rush, Dream Theater, Pink Floyd, etc. I also like music on the heavy side, that's why I like metal. Mastodon is just such a great and interesting band in my opinion. Rarely do I find anyone else that actually likes their music, but they are are very unique, and I own most of their albums. My favorite songs by them include Blood and Thunder, March of the Fire Ants, Aqua Dementia, Divinations, Circle of Cysquatch, and many more.