Earlier this year (15), the 20-year-old artist signed with FilmOn executives to collaborate on a series of hologram concerts, which were subsequently shut down in several cities including Hammond, Indiana and Los Angeles.

In November (15), FilmOn founder Alki David suspended the contract, citing issues he had with Keef's management, involving the release of unauthorised music.

Now David is taking their feud one step further by filing a million-dollar lawsuit against Keef's manager Idris 'Peeda Pan' Abdul Wahid, as well as the rapper's producers, Zaytoven, Metro Boomin', Sonny Digital and DJ Holiday, who all contributed to two of Keef's new projects, November (15) release Finally Rollin' 2 and Nobody 2, released earlier this month (Dec15).

"Since May 2015, Chief Keef has breached the Agreement by arbitrarily and capriciously recording, writing, selling merchandise and performing outside of the Agreement," David claims in the documents obtained by Billboard.

The FilmOn boss also makes it clear that Keef is not named in the lawsuit, since he believes the release of unauthorised music was the decision of management, and not the rapper.

"FilmOn Music is not suing Keef because we do not believe in suing talent," David tells Billboard. "We believe Keef has once again mislead by his management. We have filed a lawsuit against his management company plus all the vendors and producers who have knowingly interfered with his 360 Recording Contract with FilmOn Music."