Here's a moment you might have missed during the public demonstrations in Paris: thousands of people joined together to sing – in English – John Lennon's iconic song, "Imagine."
The rallies of national unity were organized to honor the 17 victims of two terrorist attacks including the one on weekly satire magazine Charlie Hebdo. The Paris rally saw up to two million hit the streets, as well as more than 40 world leaders.
In total, 3.7 million people joined public demonstrations across France.
Check out the video below.