Hardy was born in Baton Rouge, Louisiana, and raised in Livingston, Louisiana. His father Barry is a general contractor for a construction company, and his mother Cindy Lou is a real estate agent. He has a brother Kyle, and an older sister, Brittany Banta. His maternal grandmother is a Korean immigrant from Seoul. He attended French Settlement High School and graduated in 2018. He learned to play the guitar when he was eight, and by the time he was 14, he was performing in a band with his brother and cousins called the Band Hardy in local bars and restaurants. Although initially he did not sing, he was encouraged by his brother to sing.
