50 Cent ‘The Lost Tape’ Mixtape: Eminem, 2 Chainz and Snoop Dogg Join New Collection Announced back in March, 50 Cent's The Lost Tape mixtape -- his first entry in DJ Drama's Gangsta Grillz ...

But here’s the twist: he didn’t care about the victory. He cared about the tape. Eminem’s mixtape, born from the ashes of defeat, found its way into the hands of none other than Dr. Dre.