Mastodon fans (more by Greg Cristman)
Mastodon

Bon Iver was nominated for four high profile Grammys (though not "Album of the Year" which is what Arcade Fire won). Adele & Katy Perry nominated for a zillion, and other nominees include The Black Keys, Foster the Peepee, Cee Lo, Duck Sauce, Robyn, Cut Copy, Skrillex, Deadmau5, Coldplay, Radiohead, Mumford & Son, Mastodon, Wilco, Death Cab For Cutie, My Morning Jacket, Jay-Z, Kanye West, The Civil Wars, Emmylou Harris, Levon Helm, Fleet Foxes, Gillian Welch, Steve Earle, Patton Oswalt, Louis CK, Weird Al, Danger Mouse, Memory Tapes, TV On the Radio, A Tribe Called Quest, etc...