The Mohegan date was one of several the singer was forced to reschedule Monday when her doctors instructed her to rest her back for six to eight weeks. The ever-colorful Parton, who once referred to her breasts as "shock and awe," attributes her back problems to them.
"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 said in a statement. "But hey, you try wagging these puppies around a while and see if you don't have back problems."
"Backwoods Barbie" is due out Feb. 26.