Royce DeGrie, Getty Images
Jackson Trace Webber was born on June 6 to the country legend's eldest daughter, Tarah. To mark yesterday's holiday, the proud grandfather posted pictures of himself and the little tyke -- as well as his own father, Aaron -- on his Facebook page.
Trace also shared the photos with People, and in an interview with the magazine, he said he might spend Father's Day planting apple and peach trees in the grove his wife, Rhonda, and daughters gave him last year.
"There's nothing more satisfying than to watch them grow -- that goes for the little ones and the trees," he said.
Congrats to Trace, Tarah and the whole Adkins family!