Her thumbnail measures nearly three feet long, and the nail on the middle finger of her left hand is 22 inches.
Add 'em all up, and you've nearly 20 feet of fingernails -- 19 feet, 9 inches long -- putting her into the 2012 edition of Guinness World Records.
Walton, 45, is a Vegas singer with five kids and three grandchildren -- and, I assume, a lot of nail polish.
She told me she can't reach into her own pockets and needs buttons or zippers on her jacket sleeves. She also needs an escort in crowds to make sure she doesn't bump into anyone or anything that could damage her nails.
"They're kind of like a body part that I've lived with for years," she told me at The Huffington Post. "I don't know what I would do without them. I've adjusted the way I've lived for so long, it would be hard to go back."
She also says there's no particular secret to growing long nails.
"I eat a lot of candy," she said. "And I have a lot of patience."