Dolly Parton's sister is rallying fans to pray for the singer amid her recent health issues.

In a Facebook post Tuesday, Parton's sister Freida Parton said she was "up all night praying" for her superstar sibling.

"Many of you know she hasn't been feeling her best lately," she wrote. "I truly believe in the power of prayer, and I have been lead [ sic ] to ask all of the world that loves her to be prayer warriors and pray with me."

She continued, "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!"

The "Jolene" singer has not publicly disclosed the nature of her health issues. ABC News has reached out to Dolly Parton's reps and understands that she is continuing to wo

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