Eminem's music may have become less offensive in recent years, but the 41 year-old rapper recently caused controversy due to a freestyle rap he recorded to promote his forthcoming compilation album 'Shady XV.'

Eminem
Eminem threatened to punch Lana Del Rey in the face in a recent freestyle rap

Throughout his storied career, Em has targeted many high-profile celebrities in his lyrics, including Sarah Palin, Mariah Carey and Christina Aguilera, and now he takes aim on Lana Del Rey in a very derogatory rap.

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In one of his verses, the Grammy-winning star cites the NFL's recent domestic abuse scandal involving former Baltimore Ravens running back Ray Rice, who caught on video hitting his then fiancé, Janay Rice, in a hotel elevator.

Em rapped:

"But I may fight for gay rights, especially if the [expletive] is more of a knockout than Janay Rice/ Play nice? [Expletive] I'll punch Lana Del Rey right in the face twice, like Ray Rice in broad daylight in the plain sight of the elevator surveillance/ 'Til her head is banging on the railing, then celebrate with the Ravens."

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Del Rey, who has yet to comment on the controversial diss, but she may now regret gushing about Eminem in a 2012 interview, in which she called him a "genius," after hearing the offensive lyrics.

Lanna Del Rey
Del Rey has previously called Em a "genius"

"He really changed my life. I didn't know music could be intelligent," she told RNBJUNK over two years ago. "He wasn't just rhyming for rhyme's sake. That made me think I could actually talk about the way things actually were. He's a genius."