NASHVILLE, Tennessee — Concerns are growing about the health of Dolly Parton after her sister used a social media post to ask fans to pray for the country music legend.

“Last night, I was up all night praying for my sister, Dolly,” Freida Parton writes in the post . “Many of you know she hasn’t been feeling her best lately. I truly believe in the power of prayer, and I have been (led) to ask all of the world that loves her to be prayer warriors and pray with me.

“She’s strong, she’s loved, and with all the prayers being lifted for her, I know in my heart she’s going to be just fine. Godspeed, my sissy Dolly. We all love you!”

Last month, Parton, 79, announced she was postponing a December residency in Las Vegas because of unspecified health problems. She said in a post on social me

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