Dolly Parton’s sister ‘up all night praying’ as singer battles health problems

Last month, Parton postponed a scheduled Las Vegas residency, citing 'health challenges'

Dolly Parton postponed an upcoming Vegas residency last month due to health problems (Yui Mok/PA)

Dolly Parton’s sister says she has been “up all night praying” as the singer continues to deal with unspecified health problems.

Freida Parton added that her 79-year-old sibling “hasn’t been feeling her best lately”.