Gabrielle Aplin gave Glastonbury revellers a sneak preview of her gig with a surprise performance on a train at Paddington station today.
Festival-goers taking the early First Great Western service to Castle Cary, Somerset, were pleasantly surprised when the singer-songwriter played songs from her set accompanied with her acoustic guitar.
Twitter users posted images of Aplin performing the pre-Glasto gig on the social media website.
Victoria Jade wrote: "The highlight of my entire trip to London was being able to see Gabrielle Aplin at Paddington. You are perfect."
The signer rose to fame in December 2012 when her cover of Frankie Goes to Hollywood's 'The Power of Love' was selected for a John Lewis Christmas advert.
Festival-goers have been warned to brace themselves for heavy showers at the weekend.