A native of Ellaville, Georgia, Hammack began playing music when she was 13. She started cutting her teeth on the local circuit, playing gigs whenever she could land them, sometimes using a fake ID to get her inside bars. Hammack launched her first band when she was 16, the same age that saw her battling a two-pound tumor that attached itself to her spinal muscle. She successfully recovered and continued to play through the Southeast.
Hammack's first big break came through Luke Bryan, whose mother heard Hammack and had her famous son give her a listen. Bryan became a fan and encouraged the Georgian to move to Nashville. Hammack was 17 at the time and sat on the idea for a while. Shunning a college scholarship so she could follow Bryan's advice when she was 19, she lived in a car until she began to cobble together performances on Broadway, eventually signing a publishing deal with Universal Music Group in 2016. Not long afterward, she became part of ASCAP's GPS program, a membership that paved the way for her to take home the organization's Sammy Cahn Award -- an honor bestowed on promising lyricists -- in 2016; previous winners include Lori McKenna, Josh Ritter, Nicole Atkins, and John Mayer.
Hammack signed a record deal with UMG Nashville in 2018, then set out to record an album. "Family Tree" -- a song she co-wrote with Gordie Sampson and Troy Verges -- became her debut single in 2019. She supported the song by opening for Lanco, Miranda Lambert, Dierks Bentley, and the Brothers Osborne over the course of 2019. "Family Tree" cracked the Billboard Country Airplay Top 40, peaking at 32, thereby setting the stage for the August 2020 release of Hammack's debut album, If It Wasn't for You, on Capitol Nashville. Co-produced by Hammack and Mikey Reaves (Miranda Lambert, Ashley Monroe) with Connor Thuotte (Nashville), it featured a duet with Reba McEntire and a song with Ashley McBryde and Tenille Townes. Hammack was back with new music in 2023, releasing the single "All or Nothing," which was recorded with veteran producer and session guitarist Dann Huff. ~ Stephen Thomas Erlewine, Rovi