If you count yourself among those who thought Eminem's 'Rap God' was lyrically mind-bending, but not all that musically, then this additional bonus cut off 'The Marshall Mathers LP 2' (read our review here) should tick both boxes.

An exclusive track for fans who purchased the 'MMLP2' and 'Call of Duty: Ghosts' bundle package -- part of their partnership that also saw Em's 'Survival' soundtrack the game's TV spot -- Slim Shady reworks Black Moon's 'I Got Cha Opin,' taken from the group's 1993 cult favorite album, 'Enta da Stage.'

Over a loop of the opening bars from the original, as pointed out by Just Blaze, Em masterfully weaves in and out of the filtered bassline and dusty drums, toying with pitches and flows throughout. As if it wasn't already a backpacker's wet dream, he salutes all the real MCs out there before revealing that he almost linked up with Duck Down, the well-respected East Coast label founded by Buckshot and Dru-Ha.

"'Cause on the mic I gotta represent the real rappers / The real rappers get the motherf--king skills cracking / Word to Buckshot and Dru Ha, why the f--k not? / You don't like it suck a c--k / Almost forgot, before I signed with the Doc, I almost signed with Duck Down," he spits.

After hearing this, knowing that Eminem didn't breakout in the early '90s will actually hurt a little bit.

Listen to Eminem's 'Don't Front' Featuring Buckshot