With the release of his fourth studio album, Kendrick Lamar has cemented his legacy has one of the best emcees to ever pick up the mic. Some Twitter users would go even further; they think he's become better than Eminem.

Routinely dubbed the GOAT, Eminem stands head and shoulders above most rappers in history. XXL reports Hot 97 radio personality Peter Rosenberg sparked the debate by crowning K. Dot last week.

"Best rapper who's ever lived. There's not a person who can rap on planet earth better than Kendrick Lamar. Eminemcan rap as well. Nas can rap as well," he said.

Since that declaration, Twitter users -- including Em stans -- have put in their two cents, most siding with either Kung Fu Kenny of Slim Shady and not even giving a second thought about other legends such as Jay Z, Biggie or Rakim.

Check out tweets from some of the most opinionated users on social media. And tell us who you think is the king?