think Eminem going against J Rule hit him up by Tupac no Vaseline by Ice Cube Leonard Skinner's biggest song contains a disc to Neil Young Neil but the hardest diss track of all time and I don't think anybody can dispute this belongs to this man Barber is dead and I'm laughing The Joker Goes harder than even Tupac would I killed your girl so pretty laughing at Bruce Wayne's parents dying your parents are dead and I can't stop laughing and when some rappers say I will kill your crew The Joker has already done it I killed all your friends and I can't stop laughing come back to me when Ice Cube kidnaps someone's sidekick Jason to's dead