Tom Morello (Rage Against The Machine/Prophets Of Rage) has posted another teaser related to his Atlas Underground project. This one features a snippet of new music as well as longer list of guests. Skrillex, Marcus Mumford (Mumford And Sons), Bassnectar, GZA and RZA of the Wu-Tang Clan, Big Boi (Outkast), Killer Mike (Run The Jewels),…