Eminem dropped a surprise album on Thursday (January 16) night called Music to Be Murdered By, and one of the tracks, "I Will," which features Slaughterhouse rappers, takes aim at Lord Jamar. 

Eminem raps on the track, "I'm more than you bargained for and I am far more worse
Than a fourty-some bar Lord Jamar verse/Nothing means more than respect, so when I curse/You could say I swore to protect/My image I have zero time or regard for/I never was, been claiming rap when it's not yours/If it was anyone's house G Rap and Rakim would be havin' you mop floors/Run-DMC would be havin' you cleanin' sinks/Yeah, your group was off the chain, but you were the weakest link." 

Check it out in full above.