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Having apparently just heard LMFAO's 2010 hit "Party Rock Anthem" and its catchphrase "Every day I'm shuffln'," Rick Ross has filed a copyright infringement lawsuit against the dance-pop duo, claiming that the phrase infringes on Ross' own "Every day I'm hustlin' line from 2006's "Hustlin."

According to the lawsuit reported by The Hollywood Reporter, "The use of 'Hustlin’' in 'Party Rock Anthem' is readily apparent, despite the slight change from 'Everyday I’m hustlin’ …' to 'Everyday I’m shufflin'…" and constitutes, inter alia, the creation of an unauthorized derivative work."

Ross also claims that LMFAO performed the phrase "in a manner to sound like Ross' own, and is an obvious attempt to capitalize on the fame and success of 'Hustlin’.'"

The lawsuit alleges that the group has illegally profited off the use of the phrase. "The phrase is so important to the success of 'Party Rock Anthem,'" notes the suit, "that LMFAO launched a highly successful clothing line, Party Rock Clothing, that features the phrase on T-shirts and other clothing items." Related: Please don't wear any of these shirts out of the house.

So to sum up: A noted rapper, who stole his name from convicted drug trafficker Freeway Ricky Ross after trying to hide his past life as a corrections officer, is concerned that LMFAO may have borrowed an element of his life without permission. Got it.