Ed Sheeran gets a huge surprise after seeing his best friend in Graham Norton's Red Chair

Warning: Video contains some strong language 
Ed Sheeran was more than surprised to see his school yard best friend on Graham Norton's Red Chair.
The pair had clearly not seen each other for some time judging by how long it took for Ed to recognise who was on the other side of the screen. 
See Ed's entire reaction in the video above.