The UK grime star was talking to young pupils at his old primary school in Thornton Heath, south London, when he was asked why he was not a fan of the prime minister. He replied that Johnson was “a very, very bad man”.
Stormzy, who was a vocal supporter of Jeremy Corbyn in the run-up to the general election, also compared Johnson to the “big, bad wolf”.
Good Morning Britain presenter Morgan was quick to comment, tweeting: “He shouldn’t have done this, and shouldn’t have been allowed to do this.”
Stormzy responded: “The kid asked me a question and I replied truthfully nothing wrong with that Piers lol.”
Morgan replied that the music star should use his power “more carefully”, saying: “Come off it Stormzy – saying stuff like that to a bunch of very young schoolkids isn’t cool, and you know it.
“You’re a hugely influential role model now to so many youngsters. Wield that power more carefully.”
Stormzy replied: “No, it isn’t cool, it’s the truth lol. Again, they asked me a question and I answered it truthfully and with jest.
“I gave em my opinion. They’ll grow up and be able to make their own. This ain’t a shocking incident pal sorry lol.”
Before the election, Stormzy urged his fans to vote for Labour and described Johnson as a “fucking prick” in an impassioned video to his 2.7 million Instagram followers.
He said Corbyn was “a man of hope, a man of justice, a man of equality”.