Singer/songwiter Taylor Swift perfoms onstage during the Formula 1 USGP on October 22, 2016 in Austin, Texas.
Credit: John Shearer/LP5/Getty

In a Facebook live event Tuesday, Grammy-winning country group Little Big Town revealed that the "young girl from Nashville" who penned their new single is none other than their "dear friend" Taylor Swift.

"She sent us this song and it was one that was really special to her. She thought of us because of the harmonies," group member Karen Fairchild explained of how "Better Man" first came to them. "She's never pitched a song to anyone before and the moment that we heard it we were like, 'Man, that is a song that we're gonna cut.'"

Guitarist Phillip Sweet added that all four of them had the same reaction to the song the moment they heard it. "We knew it felt right," he said. "This one just felt special."

Fairchild also discussed their difficult decision to keep the fact that 26-year-old Swift wrote it in secret—at least in the beginning.

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"It was a hard question to dodge," she admitted. "The only reason why we didn't say [she wrote it] is that we wanted you to hear that song for what it's worth, and it is a beautiful song. She's the biggest pop star in the world, but at her heart she's a songwriter from Nashville."

After the band's big Facebook reveal—which coincided with the announcement that they'll be doing a six-night residency at Nashville's Ryman Hall—Swift took to Instagram to share the news herself. "Feeling really honored that a band I've loved for so many years decided to record this song I wrote. Good luck at #cmaawards @littlebigtown !! Love you guys." she wrote alongside the cover art for the single.

Watch the video for "Better Man" above. Little Big Town's seventh studio album The Breaker will be released Feb. 24.