Glen Campbell dies at 81 after battle with Alzheimer's disease

The singer revealed his diagnosis in 2011.

"It is with the heaviest of hearts that we announce the passing of our beloved husband, father, grandfather, and legendary singer and guitarist, Glen Travis Campbell, at the age of 81, following his long and courageous battle with Alzheimer's disease," the statement read. "The family appreciates your prayers and respect for their privacy at this time."

Campbell revealed his diagnosis in 2011 and began his retreat from public life shortly after the announcement.

Campbell's trek ran through November 2012 and featured several of Campbell's children playing in his backing band. The tour was the subject of the acclaimed documentary "Glen Campbell: I'll Be Me." He was later nominated for a best song Oscar for his contribution to the film's soundtrack.

After three marriages, Campbell made headlines in 1980 and 1981 for his high-profile, stormy relationship with fellow country singer Tanya Tucker, who was 21 years old at the time, while Campbell was 44. After meeting dancer Kim Woollen on a blind date in 1981, the couple married the following year and had three children together. He had five children from previous marriages.

Campbell is survived by his wife of more than three decades, Kim; their three children, Cal, Shannon and Ashley; his children from previous marriages, Debby, Kelli, Travis, Kane, and Dillon; ten grandchildren, great- and great-great-grandchildren; sisters Barbara, Sandra and Jane; and brothers John Wallace “Shorty” and Gerald.