The Rolling Stones' current tour has reportedly become the biggest of them all.

"A Bigger Bang," the tour that began in August 2005, has taken in $437 million US, moving it past U2's 2005-06 "Vertigo" trek for the top-grossing concert tour in history, Billboard reports.

Mick Jagger and the Rolling Stones perform in the rain on the Halifax Commons in September.
(Andrew Vaughan/Canadian Press)

And "A Bigger Bang" may get even bigger.

The Stones were forced to delay or cancel shows after guitarist Keith Richards fell out of a tree while vacationing in Fiji and singer Mick Jagger suffered throat problems. To atone for the missed dates, the band is considering stretching the tour — which Billboard says has already drawn 3.5 million people to 113 shows — into 2007, when it could approach the $500-million mark.

"I don't think we're done," tour producer Michael Cohl told Billboard.com. "There are still a lot of cancellations in Europe that the band feel obligated to try and make up. So I wouldn't be surprised if it keeps going next year."

Along with their 1994-95 "Voodoo Lounge" tour, the Stones now have two of the top three grossing tours of all time.

Despite some rough times, including the death of Jagger's father and a stint in rehab by guitarist Ron Wood, "A Bigger Bang" has produced its share of highlights, including a September concert in Halifax that drew 50,000 fans, back-to-back dates in Regina in October and a show in Vancouver this past weekend.

New York show filmed

In November, the band played shows at New York's Beacon Theatre that were filmed by director Martin Scorcese for an upcoming feature film.

"Look forward to it," Cohl told Billboard.com "The set list is dramatically different than anything you've seen from the Rolling Stones for a long, long time. There are bunch of songs that you've never seen them do, or that they haven't done in 25 or 30 years.

"Add Martin Scorcese's bent to it and you're going to get something really unique."

With files from the Associated Press