Kim Kardashian and Kris Jenner are taking legal action against Ray J .

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The " Keeping Up With the Kardashians " alums are suing the R&B singer, whose real name is William Ray Norwood Jr. , for defamation after he said a federal criminal racketeering investigation was launched against them, according to the lawsuit obtained by Rolling Stone .

Ray J had stated in the TMZ documentary series " United States vs. Sean Combs ," which premiered in May, that “racketeering charges against the Kardashians would be appropriate” and "if you told me the Kardashians was being charged for racketeering, I might believe it."

Now, Kardashian and Jenner are slamming what they say in the suit are “bla

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