Hip-hop star Eminem is demanding Republican presidential hopeful Vivek Ramaswamy stop rapping his songs.

According to The Daily Mail, Eminem asked music licenser BMI to send a cease and desist letter to Ramaswamy.

In the letter dated Aug. 23, the company wrote to the presidential hopeful’s campaign it had “received communications from Marshall B. Mathers, III, professionally known as Eminem, objecting to the Vivek Ramaswamy campaign’s use of Eminem’s musical compositions (the ‘Eminem Works’) and requesting that BMI remove all Eminem Works from the Agreement.’

“BMI will consider any performance of the Eminem Works by the Vivek 2024 campaign from this date forward to be a material breach of the Agreement for which BMI reserves all rights and remedies with respect thereto,” it added.

The letter comes after Ramaswamy performed Eminem’s “Lose Yourself” during a campaign event.

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Ramaswamy reacted to the news on X, formerly known as Twitter, with lyrics from another one of Eminem’s songs as he wrote, “Will The REAL Slim Shady Please Stand Up? He didn’t just say what I think he did, did he?”

Check out some of the reactions below:

According to RealClearPolitics’ average of polls, Ramaswamy is in third place for the Republican presidential nomination with 7.6% support.