ASHLAND, Ky. -- Country music singer Loretta Lynn was hospitalized over the weekend with the early stages of pneumonia, according to a representative of the performer.

The 76-year-old Lynn was scheduled to perform Saturday at the Performing Arts Center in Ashland, Ky. and Sunday in Durham, N.C., but the Kentucky center issued a news release saying she is in the hospital and would be unable to perform. The Kentucky theater says the show will be rescheduled.

Loretta Lynn Enterprises posted a statement on her website Saturday night that confirmed the cancellations due to illness.

"Doctors have diagnosed her as the beginning stages pneumonia, and will continue to need rest. Loretta is doing well and is disappointed but feels confident she will be ready for upcoming November dates."

Calls by The Associated Press to representatives of Lynn were not immediately returned Saturday.

In August, Lynn canceled shows because of knee surgery. Before that, she returned to live performances with a show at the Grand Ole Opry after being forced to cancel shows in Ohio and Connecticut because she was hospitalized for heat exhaustion.

The daughter of a Kentucky coal miner, Lynn had a string of hits starting in the 1960s – "Coal Miner's Daughter," "You Ain't Woman Enough," "The Pill," and "One's on the Way." Many of her songs reflected her pride in her humble background and her experiences as a wife and mother. Her 1977 autobiography was made into a movie that brought an Oscar for Sissy Spacek's portrayal of Lynn. More recently, Lynn marked 50 years in country music and won two Grammy awards in 2005 for her album "Van Lear Rose."