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Mike Tyson didn't come out victorious in his fight against Jake Paul and is now facing another bout -- a legal one brought by producer Ty Fyffe who claims Iron Mike didn't have permission to use his hip hop banger featuring Jay-Z , DMX , and Ja Rule in his promo video before the fight!!!

According to docs obtained by TMZ Hip Hop, Fyffe says he's the co-writer and producer for the 1998 track "Murdergram," from Jay's "Streets Is Watching" soundtrack.

Apparently, Fyffe was watching the placements too.

Once upon a time, Jay, DMX and Ja Rule were slated to record as a supergroup named "Murder Inc." ... Irv Gotti told the story several times before he died in February.

The group never really materialized, but they managed to rec

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