Fans of ailing country star Glen Campbell can expect one more album from the singer, but they will never see him perform live again, according to his publicist.

The Rhinestone Cowboy legend, who turned 77 on Monday (22Apr13), was diagnosed with Alzheimer's disease back in 2011.

He set out on a farewell tour last year (12), but had to scrap dates in New Zealand and Australia when his condition worsened.

In July (13), Campbell will treat devotees to an album, See You There, which will feature new renditions of old songs, but his spokesperson is adamant the star will never grace the stage to perform the tracks.

Publicist Sandy Brokaw tells Reuters, "He's done touring. He went on the good-bye tour and wanted to see how it was with his health. After Christmas they put a big bow on (touring) and wrapped it up."

Brokaw also reveals her client's condition is now so bad, he can no longer talk to the press: "He can't do an interview; he's confused. He's not comfortable on live Tv anymore."