Ennis was born in Dothan, Alabama into a military family. He calls Valdosta, Georgia home. He played drums and piano from an early age.
After moving back from Georgia to Nashville in 2013, Ennis signed up for a Battle of the Bands contest, which he won. He also wrote Tyler Farr's 2016 single "Our Town". He signed to Arista Nashville in September 2016.
Arista released his debut single "Woke Up in Nashville", which he wrote with Blair Daly and David Hodges. The song was produced by Corey Crowder, and features Ennis playing all of the instruments himself.
|2016||"Woke Up in Nashville"||45||42||Mabelle|
|2017||"Look at You"||—||—|
|2018||"Call Your Mama"
(featuring Little Big Town)
|2016||"Woke Up in Nashville"||Dean Lent|
|"Think & Drive"||Michael Monaco|
|2017||"Fast Girl"||Jim Shea|
|"Play It Cool"||Wayne Miller|
|2018||"Call Your Mama" (with Little Big Town)||Jeffrey C. Phillips|
- Monger, James Christopher. "Seth Ennis". Allmusic. Retrieved 18 April 2017.
- Reuter, Annie. "How Hard Work Paid Off for Seth Ennis". Taste of Country. Retrieved 18 April 2017.
- Nicholson, Jessica (September 6, 2016). "Arista Nashville Signs Seth Ennis, Releases "Woke Up In Nashville"". MusicRow. Retrieved 18 April 2017.
- "Seth Ennis – Chart history". Billboard.