Rockin'1000 on YouTube, if you never heard of this collection of 1000 musicians here`s a sample of just one of their shows.
A quote from this video; "We are a team of professional producers, film makers, communication experts, and sound engineers, but above all, music enthusiasts.
We organize massive events where thousands of musicians perform simultaneously."
"This's "We Will Rock You" by Queen performed by 1.000 musicians together at Rockin'1000, Stade De France - Paris, on June 29th."