Earlier today, XXL got an exclusive interview Killer Mike, during which he revealed his plans to release the fourth installment of his I Pledge Allegiance to the Grind album series.

The legendary Atlanta emcee explained that I Pledge Allegiance to the Grind IV will follow the three previous entries in the series in its motivational themes. He also announced that he's enlisted the likes of El-P and Harry Fraud to contribute production to the album, which is expected to drop in 2014.

"[I Pledge Allegiance to the Grind IV] is gonna be what Pledge is - motivation music. Anybody who's listened to Pledge knows that," he said. "I'm motivated to lose a little weight, so hopefully I'll be smaller when Pledge IV comes out. The Pledge series has always been about setting goals; it's been about dope music, but they've become almost like research papers with thesis statements. When started PL3DGE with 'So Glorious' - you know, 'My story is so glorious/Fat fly boy, young Notorious' - it was just my whole description of what I had been through, and Pledge II started with this speech that people love…and Pledge I was about leaving Purple Ribbon and leaving a major label and becoming this new thing on my own, so Pledge has always been about defining who I am at that moment and where me and my supporters can go together…Pledge IV is gonna be more of that over bigger, deffer beats. Harry Fraud is gonna be on that, El-P is gonna be on that."

Killer Mike also revealed a few details about two other projects he has in the works, the long-touted The Elegant Elephant and a sequel to last year's collaborative project with El-P R.A.P. Music. Although he couldn't give any update on Elegant Elephant, a project he described as "my Moby Dick," he said that that R.A.P. Music II will tentatively drop in 2014.

"For R.A.P. Music II, me and El are gonna do shrooms, smoke weed and go back in a do it again" he said. "For The Elegant Elephant, that is my Moby Dick. I'm the captain of a ship on a fuckin' boat chasing that whale. I'm supposed to evolve into whatever The Elegant Elephant is going to be, and I can't honestly tell you the sound, except for it's going to be musical and it's going to be big and it's gonna be soulful…[but] I'll definitely have R.A.P. Music II and Pledge IV finished and ready for 2014."

Mike Bigga is slated to perform later tonight alongside Two-9 and Morri$ at Brooklyn's Public Assembly at Scion A/V's Open Mic event. Check out the flier below for more information on the event.