"I hope people see how his music and his voice really touched people," says the country singer about her dad

By Melody Chiu
Updated September 08, 2016 08:00 PM
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Credit: Terry Wyatt/Getty Images for ACM

The 10th Annual ACM Honors was an extra special night for the Campbell family.

Toby Keith, Blake Shelton, Dierks Bentley and Keith Urban all took the stage together for a special tribute performance to country legend Glen Campbell, and his daughter Ashley was also part of the band during the segment.

“[The Academy of Country Music] reached out to us a while ago and we were completely thrilled,” Ashley told PEOPLE exclusively about her dad’s latest honor. “I hope people see how his music and his voice really touched people and is still touching people now. It’s the definition of timeless.”

Ashley, 29, attended the show with her mom, Kim Campbell (who accepted the award on her husband’s behalf), and her brothers Cal and Shannon.

Campbell, 80, was diagnosed with Alzheimer’s disease in 2011 and now lives in a memory-care facility near his Nashville home.

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“He’s definitely progressing but he’s been pretty steady lately,” says Ashley. “There’s no giant leaps and bounds, but for the most part he is just in his own world. When I go and visit him, he might notice I’m there and his face will light up and he’ll give me a hug.”

While his attention span is now “really short,” the “Rhinestone Cowboy” singer is “just very happy and content and a joy for everyone to be around,” says Ashley. “That’s all you can ask for at that stage.”

Hosted by Lady Antebellum, the 10th ACM Honors will air Friday on CBS at 9 p.m. E.T.