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John Lennon's iconic "Imagine" has brought people together all over the world since the legendary rocker released the song. And now, masses of people participating in unity marches and rallies in France paying tribute to the 17 victims of the Charlie Hebdo terror attacks are singing the famous song loud.

While watching the march from an apartment above, one YouTuber caught the inspirational moment on video as the massive amounts of people were marching and singing along to "Imagine."

It's so uplifting and powerful to witness how music brings people together in difficult and often scary times.

Watch the crowd singing John Lennon's "Imagine" at the Unity March below: