I do a lot of topics on concerts (as you may have seen), but considering we are at a point where we can't really go to concert, I think it's good to revisit them. These don't necessarily need to be one concert, it could be a whole concert tour, and yes it still can be Led Zeppelin.
For me, I would probably choose Live Aid - probably London, cause there were some better acts there then there were at Philadelphia (Queen, Dire Straits, David Bowie etc. etc.)
How about yours?