They may be her most well-known assets, but Dolly Parton's breasts are a pain in her back. The 62-year-old music legend is postponing her North American tour after doctors told her to rest her sore back for six to eight weeks.

"Hey, you try wagging these puppies around a while and see if you don't have back problems," the notoriously humorous Parton said in a statement.

Never one to take herself seriously, Parton has long joked about her big bust line. She once famously quipped, "I wanted to be the first woman to burn her bra, but it would have taken the fire department four days to put it out."

Parton was supposed to begin her tour in Minneapolis later this month, in support of her upcoming album, 'Backwoods Barbie.' It's the first CD on her new label, Dolly Records, and her first new mainstream country music in 17 years.