Killer Mike has long been declared one of the most dexterous, lyrically skilled MCs in rap music. Even Kendrick Lamar shouted him out on 2015's To Pimp A Butterfly: "Critics want to mention that they miss when hip-hop was rappin' / Motherf-cker, if you did, then Killer Mike'd be platinum"
At any rate, in a recent interview with Idea Generation, Mike claimed he's caused some high-profile lyricists to reassess their verses after he's guested on tracks with them, including Jay-Z and Pusha T or Black Thought (he wouldn't specify which of the latter changed their verse after hearing his).
He starts out by referencing Jay-Z's "Poppin Tags."
“I remember somebody tried to insult me like, ‘The only reason you got a Grammy is you’re on a song with OutKast,” he recalled. The reference is OutKast's 2001 hit, "The Whole World" where Killer Mike caught "the beat runnin' like Randy Moss."
“I said, ‘I had the wickedest verse on that muthafucka,’" he continued. "‘Cause what you not gon’ do is not tell me I’m a bad-ass muthafuckin’ rapper," he pledged. “You go listen to ‘Poppin’ Tags.’ I originally was directly behind JAY-Z. Somebody chopped it and pushed my ass down one more. Said, ‘Let’s get Twista in between this.’ ‘Cause I was rapping my ass off.”