Wu-Tang Clans Ghostface Killah is attempting to collect all unpaid royalties for music produced under his contract with Universal Music Group as a member of the Wu Tang Clan.

Ghostface Killah filed the lawsuit against Universal in court yesterday.

The suit claims that UMG violated their a contract, as it is alleged that the record company only holds a 25% stake in Wu Tang Clan songs, not a 50% copyright interest as has been claimed by Universal.

As Ghostface is suing UMG, the rapper is being sued himself by Hollywood composer Jack Urbont, who originally created the “Iron Man Theme” for the 1960s television show, The Marvel Super Heroes.

The suit against GFK claims he infringed on the “Iron Man Theme” that was sampled for use on his album Supreme Clientele that was released in 2000.