Mike WiLL Made It will release his new mixtape, Est. In 1989 2.5, on December 24th. The mixtape will feature Gucci Mane, Future, Rihanna, Kelly Rowland, Brandy, Juicy J, Big Sean, B.o.B., French Montana, Young Jeezy, Trinidad Jame$, Chief Keef, Lil’ Wayne, Rick Ross, TI, and more.