What are some great youtube live concert clips?

Doesn't matter what genre or why you think its amazing, just make it one of the videos that stopped you in your tracks. I've got an open mind at the moment and what to explore sounds both inside and outside of metal.

If its an hour long concert, excellent, but tell me a minute range to really watch out for as time is limited these days...

Bonus points if you write a little excerpt that explains why you liked it so much.

Note:

Budding musicians are fully allowed to give links of themselves as well, but only if they feel their music should be a part of this list.