Guess who's back! Eminem has revealed a new song from his upcoming album called 'Survival.' The track can be heard in the background of Activision's 'Call of Duty: Ghosts' trailer.

Produced by DJ Khalil, the song features singer Liz Rodrigues (of the New Royales) belting out the chorus: "This is, survival of the fittest / This is, do or die / This is, winner takes all / So take it all."

Then, over the fist-pumping, guitar-charging track, Em raps about overcoming tough obstacles to make a name for himself in the rap game.

"I wasn't ready to be a millionaire, I was ill-prepared / I was prepared to be ill though, the skill was there," he rhymes. "Beginning it wasn't about the ends, it's about busting raps, standing for something."

In the end, for the Detroit spitfire, it's skills, dedication and conviction that got him to where he is at right now. Still undeterred, Eminem vows to maintain his position as one of the elite rappers in the game. All other sub-par rhymers beware, Slim Shady is indeed back and ready to attack.

"They said I was washed up and got a blood bath / I'm not a rapper, I'm an adapter / I can adjust, plus I can just walk up to a mic and just bust / So floor's open if you'd like to discuss / Top five in this motherf---er and if I don't make the cut / What, like I give a f--- / I'mma light this bitch up like I'm driving a truck," he raps.

According to reports, Eminem will officially drop his seventh LP in autumn. His last album, 2010's 'Recovery,' sold over 7 million copies worldwide.

Welcome back, Em!

Listen to Eminem's 'Survival' Feat. Liz Rodrigues