See incredible footage of Led Zeppelin rehearsing 'Black Dog' days before reunion
It's been 10 years since Led Zeppelin reunited for the Celebration Day concert.
The line up had Robert Plant, Jimmy Page and John Paul Jones joining with John Bonham's son, Jason Bonham.
The concert was a masterpiece and even after all those years, they still performed brilliantly.
The rehearsals were also incredible, check out some footage of them rehearsing the iconic 'Black Dog' above.