50 Cent is being sued for a song sampled in a mixtape he released three years ago.

According to TMZ, the lawsuit was filed in New York by Robert Poindexter of The Persuaders. Poindexter claims that Fif used a snippet from the band's song "Love Gonna Pack Up and Walk Out" on his song "Redrum."

Because 50 posted the song online for free, Poindexter feels like 50 thinks he has immunity from any copyright claims.

Poindexter says in the suit, "Fifty Cents [sic] has not denied the infringement, but appears to be basing his defense solely on a frivolous and immaterial claim that the illegal version is not being commercially exploited, but is given away for free."

Poindexter is suing 50 Cent for unspecified statutory damage and asking for $600,000 in punitive damages, plus interest.