Green Day’s well-known frontman, Billie Joe Armstrong recently revealed that he just watched a documentary about Woodstock that shows 400.000 people listening to music in a harmony.

Billie Joe Armstrong shared the story of the documentary on his official and verified Instagram page.

You can find the caption right below.

“I just watched this doc on Woodstock and I loved it. It was refreshing to hear the concert-goers perspective. 400,000 people together listening to music in somewhat harmony.. from a technical standpoint this show was kinda a disaster.

But it’s great to see people coming together to make it work. One thing I noticed is with all the people getting stoned and taking acid there really wasn’t a lot of booze.. maybe that’s why it worked. I dunno. What do you think?”

You can see the photo below.