The 22-year-old 'A Team' hitmaker was enjoying a night out at a pub in Scotland when he asked a group Victorian Trout if he could jam with them, reported Contactmusic.
The musicians agreed and Sheeran played tambourine with the group before borrowing a guitar and performing his own song, 'You Need Me, I Don't Need You'.
Pictures from the night, which have been published in a Scotland newspaper, show Sheeran grinning and laughing with the musicians during the intimate pub show.