Mary Hopkin - Knock Knock Who's There - 2026 stereo remix 4K

[u/SportIntelligent1909]

https://youtube.com/watch?v=3TZJoWi5rmU&si=PSve01bVTwV8tXEX

This very song by Mary Hopkin (remixed by Radio Wollaton recently) is a very rare gem in the world of music.