Big Sean & Metro Boomin release new joint project Double Or Nothing on CD on 12/22/17 via G.O.O.D Music/Def Jam Recordings/Boominati Worldwide/Republic Records. Not only are both Sean Don and Metro present on every one of the project's 10 songs, but other heavy hitters such as Travis Scott, 2 Chainz, 21 Savage -- whom Metro Boomin teamed up with in 2016 for joint mixtape Savage Mode​ -- and Young Thug are also featured.