Dolly Parton has an important health update for fans - and it's not good news. Over the weekend, the 9 to 5 singer took to Instagram to inform fans she's postponing her upcoming Las Vegas residency, Dolly: Live in Las Vegas, which was set to kick off this December. The scary reason? It's due to "health challenges": "I want the fans and the public to hear directly from me that, unfortunately, I will need to postpone my upcoming Las Vegas concerts. As many of you know, I have been dealing with some health challenges, and my doctors tell me that I must have a few procedures.