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Ailing Loretta Lynn pulls out of music festival

Loretta Lynn poses in the press room at the 44th Annual CMA Awards on Nov. 10, 2010 ,in Nashville,. Photo by Larry Busacca/Getty Images

(CBS/AP) BELMONT, Ohio - Jamboree in the Hills fans won't be seeing country singer Loretta Lynn this weekend.

The 76-year-old country music legend has canceled a weekend appearance at the Ohio music festival because of a recent bout of dehydration from which she still is recovering.

A note on the website for the Jamboree in the Hills states Lynn was recently hospitalized for serious dehydration. A statement posted Wednesday says the singer was treated following a period of extreme heat in Tennessee, where she lives.

Lynn is quoted, saying she's sad to have to cancel any shows and that she was looking forward to seeing her fans.

Miranda Lambert, Tim McGraw and Toby Keith are among the other country music stars still are scheduled to appear at the four-day Jamboree, opening Thursday in Belmont in eastern Ohio.