After a break that included brain surgery for Keith Richards and rehab for Ron Wood, the Rolling Stones are gearing up to relaunch what could be the top-grossing tour of all time.

After a break that included brain surgery for Keith Richards and rehab for Ron Wood, the Rolling Stones are gearing up to relaunch what could be the top-grossing tour of all time.

The Stones’ A Bigger Bang tour is set to resume July 11 in Milan, when the top touring band in history hits the stage again. “We were not the top touring band in the world in May and June, I know that,” says tour producer Michael Cohl. “We were the top resting and recovering band.”

Cohl says the band is set to begin rehearsals next week. “The troops are gathering, it’s very exciting," he tells Billboard.biz. "The tour’s in great shape, we’ve had a long break. ”

The band has already grossed in the $250-plus million range, and has 21 more stadium dates in Europe on the route up until Sept. 3 in Horsens, Denmark. Another 10 dates that were postponed due to Richards’ injury could still be re-booked. With stadium dates averaging in the $5 million-per gross range, at the very least another $100 million could roll into the Stones coffers, which would take the tour to record heights.

At this point, U2’s Vertigo tour is king of the tour mountain, having racked up more than $330 million. That tally puts U2 ahead of the Stone’s $320-million Voodoo Lounge tour of 1994-95, and Vertigo producer Arthur Fogel is “hopeful” that 10 postponed U2 stadium dates in the Pacific Rim can be rescheduled, taking that total even higher.

With the Stones poised to retake the throne, Cohl won’t consider a gross record for Bigger Bang at this point. “I don’t know, I never think about it,” he says. “I know (Billboard) keeps track of these things, so I don’t need to.”

As for talk that the tour might be extended, incuding more dates in the U.S., Cohl was equally vague, “I have no idea,” he says. “All we’re talking about is some rehearsals, getting started in Milan with a great show, and as soon as we get thrilled by that we’ll figure out what’s gonna be, or what’s not gonna be. Anything’s possible with the Rolling Stones.”

Additionally, Cohl is overseeing the Barbra Streisand tour that begins Oct. 4 in Philadelphia.