Amazing live performance of Led Zeppelin, the greatest rock band in history, performing "Black Dog" in front of a sold out crowd at the O2 arena. CLICK HERE TO BUY Audio / DVD & Blu-ray http://bit.ly/Q2hjwA ★ Share this on Facebook now: http://goo.gl/WzdEi Subscribe now for more Led Zeppelin video content - IT'S FREE!! http://www.youtube.com/subscription_center?add_user=ledzeppelin http://www.ledzeppelin.com/ http://www.facebook.com/ledzeppelin http://www.twitter.com/ledzeppelin