Dolly Parton has sparked fresh fears for her well-being after she canceled her Las Vegas residency due to health concerns.

RadarOnline.com can reveal the country icon, 79, will be undergoing a series of medical procedures, which means she'll be unable to perform at The Colosseum at Caesars Palace this December. Article continues below advertisement

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Her health woes come just seven months after the death of her longtime husband Carl Dean at the age of 82 .

Taking to Instagram to confirm her postponements, she wrote: "I want the fans and public to hear directly from me that, unfortunately, I will need to postpone my upcoming Las Vegas concerts.

"As

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