Parton was scheduled to kick off a 13-show tour Feb. 28 in Minneapolis, two days after the release of "Backwoods Barbie," publicist Marcee Rondan said Monday.
Doctors advised Parton to take up to eight weeks off to recover from the unspecified problem.
Rondan said she had no information on the nature of Parton's back condition.
"I know I have been breaking my neck and bending over backwards trying to get my new `Backwoods Barbie' CD and world tour together, but I didn't mean to hurt myself doing it," Parton, 62, said in a statement.
She said doctors told her she will be "good as new in a few weeks, and I can't wait to get back out there."
The tour will be rescheduled for late April through May. Tickets will be honored for the new dates.
