The music video for "What's Your Country Song", which was directed by TK McKamy, intersperses clips of Rhett singing and playing guitar, people living in the countryside, and a high school homecoming football game.

Rhett performed the song on television for the first time at the 56th Academy of Country Music Awards in April 2021, and on The Ellen DeGeneres Show the following month.

The song was written in a hotel room during a stop of Rhett's Very Hot Summer Tour in Dallas, Texas, for promotion of his fourth studio album Center Point Road (2019).

[3] In an interview with Kelleigh Bannen, Rhett described the tracks from Country Again: Side A as venturing towards making the type of music that he wanted to, as part of a shift that had "been happening since the beginning of 2019".

[4] In a statement, he explained that the inspiration of the song came from his experiences of "traveling on the road and getting to meet people from the country, from California to New York".

[2] According to Rhett, the song was difficult to write because the chorus was written before the verses, a deviation from his typical songwriting process.

[12] Rhett posted a slow-tempo acoustic clip of "What's Your Country Song" on his Instagram account in April 2020, shortly after he began quarantining at home due to the COVID-19 pandemic.

[1] The video received favorable comments from fellow country singers, including Jake Owen and Jimmie Allen, and was viewed over one million times.

[21] Providing a mixed review for MusicRow, Robert K. Oermann characterized the song as an "anthem with an uplifting mood", but criticized the production and audio quality.

[37] Rhett said that he wanted the music video to remind viewers of a familiar moment in their life and capture the feeling of listening to a nostalgic song.

[34] The music video is composed of interspersed clips of a family living in the countryside, performing various activities including chasing chickens on a farm, attending a bonfire, and singing with friends.