See Shelton's performance below.
"Austin" celebrates its 20 year anniversary this year.
Shelton told CMT his label originally wanted another song to be his debut single, but after seeing the response "Austin" received from the women in his life, Shelton stood his ground.
"Every one of them said the same thing: that they shed tears when they heard 'Austin'," Shelton said (as quoted by CMT). "So then I called the A&R person at the label and said, 'We need to have another meeting.' And she told me they'd already decided on a single. I told her, 'There's new information and we need to have a meeting.' I was determined to convince them to change from 'All Over to Me' to 'Austin.'"
Shelton will release his new album Body Language on May 21.
The country superstar is currently on season 20 of The Voice.
See the full list of 2021 ACM Award winners here.