Can Led Zeppelin still rock?

CNN’s Peter-Sorel Cameron asks the sixty-four thousand dollar question and really goes out on a limb with his conclusion: “No one really knows what to expect, apart from three legends of heavy rock playing some of the best music in the genre.”   Headline numbers include the 11,000,000 people signed up for a chance for tickets, and average age of band-members: 61 ,
still less than the Stones’ mean age [his term not mine] of 63.25 and Dylan’s “turning 67 in 2008”.