Hip Hop icon Common, who appeared on MSNBC’s “Morning Joe” yesterday to promote his new book and new album, said Nas is the greatest rapper alive.

“Nas is so poetic with it and I feel like his lyrics, you can write ‘em down on paper and they will last for time. It would be like literature that we read.”

During the interview, Common opened up about the reservations he had when penning his memoir, being labeled a “socially-conscious rapper,” and the controversy surrounding his performance at the White House.

Common and Nas recently collaborate on a track called “Ghetto Dreams.”

Watch interview below.