British rapper Professor Green has been having "anxiety dreams" about playing at Glastonbury Festival this summer.

The 29-year-old star admits he's so nervous about performing at the big music event that it's keeping him awake when he goes to bed.

Speaking to British newspaper The Daily Star: “The only big gig I’m doing is Glasto, I’m already having anxiety dreams about it. I’m the most nervous ever.”

Despite feeling anxious about his stage performance, the rap star plans to enjoy himself afterwards.

He added: “Put it this way, the next morning I’ll be wide-eyed. I’ll definitely be in the mud with everyone.”

Professor Green is currently engaged to 'Made In Chelsea' star Millie Mackintosh and recently revealed that their honeymoon has been delayed due to his busy schedule and forthcoming promotional commitments.