Yes, this is actually happening. “Mercy”, the first single off the highly anticipated G.O.O.D. Music compilation album, hit the air tonight on various radio programs around the country courtesy of DJ Clue, WGCI in Chicago and others. It features Kanye, Big Sean, Pusha T and 2 Chainzzzzzzz. The record will be available for download on iTunes tonight at midnight (Update: here it is).