Jazz pianist John Turville spotted this harmonica player performing Bach's Violin Concerto in A minor on the London Underground - and as he says: "This is why this is the best city in the world." Indeed...
No sooner had Turville posted the video to Facebook, than the comments revealed who the busker was: Philip Achille, a graduate of London's Royal College of Music who has performed at the Royal Albert Hall:
But Achille doesn't just play classical music. Here he was giving commuters a stonking rendition of 'The Chicken' while busking at Canary Wharf station: