The hitmaker’s new album is the hip-hop equivalent of an All-Star weekend. Major Key is a wildly enjoyable set of outsized radio rap whose guest list includes Nicki Minaj, Kendrick Lamar, Drake, JAŸ-Z, Nas, Future, Travis Scott, Bryson Tiller, Lil Wayne, Fat Joe, Jadakiss, Busta Rhymes, Big Sean, J. Cole, Jeezy, Wiz Khalifa, Wale—and somehow, so many more.