As Stormzy becomes Glastonbury's first black British solo king, a young pretender to the throne tells the BBC how he's "ready to go right now" with any grime MC ... I left my jacket," he explains ...

As Stormzy becomes Glastonbury's first black British solo king, a young pretender to the throne tells the BBC how he's "ready to go right now" with any grime MC ... I left my jacket," he explains ...