
Watch 1000 musicians play a Green Day medley
The Rockin, 1000 is back at it again. These people organize mass displays of musicians in venues all over Europe. Earlier this year, there was an event at Estádio Municipal in Leiria, Portugal. Another 1,000 musicians from all over the world participated in the performance of a medley of Green Day songs.
If you ever want to get involved, go here.