I don't know, based on the way his voice sounded when I saw Elvis Costello open for him in ?2009?, I think he drank the rest of the gas that was left in the tank.
For all those suggesting the Foos, saw them at Wrigley in August. Even with Grohl's broken foot it was epic. 3 opening acts. Nearly 6 hour show. You forget how many great songs they have until they play 3 solid hours of them. Would be a great half-time show that would cater to the masses, IMO.