Let me start off by saying one important thing about Beardcore that I will type in capital letters so that Jackal58 can see: JUST BECAUSE YOU HAVE A BEARD, DOESN'T MEAN YOU ARE BEARDCORE. To be Beardcore, you must sound like you have a beard; whether or not you do is irrelevant. For example, Ted Nugent is not Beardcore; he is an asshole, a big game hunter, and a classic rocker. NOT BEARDCORE. Grinderman is Beardcore, despite Nick Cave's lack of beard (hey, atleast he has a handlebar mustache). However, Grinderman sound like they have a beard, therefore, Beardcore!
Example of Beardcore Artists: The Pixies, Mastodon, The Misfits, Captain Beefheart, Cold War Kids, The Hold Steady, Grinderman, The Minutemen, Neil Young, The Replacements, Tom Waits, Iron & Wine, Band of Horses, Nick Cave & the Bad Seeds, Moondog, Gogol Bordello, Joplin, Early Queens of the Stone Age, Eagles of Death Metal, Kings of Leon, ZZ Top, and Wilco.