Jimmy Somerville, frontman of 80s British synthpop group Bronski Beat, was randomly walking his dog down the street in Berlin when all of a sudden he came across a street performer singing his 1984 hit, "Smalltown Boy."
Somerville listened for a while, and then decided to join in.
At the end of their duet, the stunned street performer asks, "Is it really you?" to which Somerville replies with a sly smile, "It's me."
And the whole thing was caught on
Now watch the original "Smalltown Boy"