(TMZ) — Newt Gingrich is being sued by the company which owns the rights to the 1982 song, “Eye of the Tiger” — claiming Newt had no right to use it as part of his campaign.

Rude Music Inc. — owned by a member of the band Survivor — filed the suit today in federal court in Illinois … claiming Newt has jacked the song made famous in “Rocky III” to push his political agenda.

According to the lawsuit, Newt has been using the song at various political events since 2009.

In the suit, Rude Music claims Gingrich used the song at the Conservative Political Action Conference in 2009, 2010 and 2011 … as well as the Southern Republican Leadership Conference in 2010.

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