Forget "Like a Rock." Bob Seger isn't feeling so rock-solid a few weeks into his Runaway Train Tour, forcing him to postpone and possibly cancel all the remaining dates, including his Nov. 15 date at Xcel Energy Center in St. Paul.

Fans should hang onto tickets for now as Seger's team works on rescheduling some of the dates. Refunds will be given if the show is not rebooked.

The postponements were announced today on Seger's website, which cited "doctor's orders to attend to an urgent medical issue concerning his vertebrae." Seger, 72, offered his own apology in the posting.

"I'm so disappointed to have to suspend the tour as the band is on a great roll," the Detroit legend said. "It's a privilege to play for our amazing fans. Hoping to be back out on the road very soon."