The country legend said she's been "responding really" well to meds and treatment, but wouldn't be "stage-performance ready" for the gigs in September Dolly Parton has canceled her Las Vegas residency, citing ongoing health issues while assuring fans that she’s been “responding really well to meds and treatments” and “improving every day.” The country legend was originally set to perform six shows at Caesars Palace in Vegas last December, but the gigs were postponed due to “health challenges.” The concerts were rescheduled for September 2026, but in her new video message, Parton admitted she needed more time before she was “stage-performance ready.”  “I am truly sorry that I’m going to miss all of you that had tickets to see me in Las Vegas,” Parton said. “Well, you get on to Vegas, and you have a big time… And I’ll see you somewhere down the line.” In the clip, Parton shared a few more details about her ongoing health issues, saying they’re related to a longstanding problem with kidney stones.…