Common, Pusha T, Kid Cudi, Big Sean, and Charlie Wilson guest on "Good Friday," the laid-back, Freddie Scott (or Biz Markie?) sampling title track from @KanyeWest's forward-thinking digital singles series. The rapper's apparently been having a blast at NY's Fashion Week kickoff ("This is the best night of my life," he tweeted tonight, hours after proclaiming "This might be the ...