The 25-year old grime artist shared a screenshot of a message exchange with his mum on his social media pages following his performance.
"Good morning my hero," Stormzy's mum began.
After the Croydon-born star asked her whether she was okay, she texted again and said: "Good morning my hero you made me so so proud - you've made me a very proud mum.
"Never forget that. The phone calls, text messages was so overwhelming. I want to see you and hug you.
Another text read: "And also I am going to dance for you at church."
She wasn't alone in praising the rapper.
Adele, Ed Sheeran and Drake also praised his performance on the Pyramid Stage as a huge moment for British rap.
✊ @stormzy using his headline spot at #glastonburyfestival2019 to speak out about the injustice of young black kids being criminalised in a biased and disproportionate justice system. Humbled and inspired that he sampled my speech. Salute #Merky pic.twitter.com/iSG3PMssrd— David Lammy (@DavidLammy) June 28, 2019
David Lammy, Labour MP for Tottenham, celebrated the artist after he sampled a speech that Lammy had given about black men and the justice system.
Stormzy has been very open about talking about his faith.
He performed two versions of his song 'Blinded By Your Grace', which is a song with Christian lyrics in his headline performance.
His set also featured a gospel choir.
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