The news first broke via a poster in an Oxfam shop in Streatham – close to the star’s childhood home – and one in Glastonbury.
Stormzy confirmed the news via a post on Instagram.
He headlined this summer’s Wireless Festival and has played Glastonbury festival twice before in the Sonic Tent in 2016 and the Other Stage in 2017.
Last year marked a big breakthrough for UK grime when Boy Better Know headlined the Worthy Farm event’s Other Stage.
Stormzy played earlier in the day on the Other Stage and performed a thrilling set, which will undoubtedly have persuaded organisers Michael and Emily Eavis to book him for the main stage.
BBC