John Foster is bringing old-school country music to Season 23 of American Idol. The young singer, who was 18 years old at the time of his audition, wowed the judges through Hollywood Week and is now winning over America. After the top 20 performed on Easter, John was one of 10 artists who automatically moved onto the top 14 based on viewer votes (the rest had to perform for the judges’ save). He’s performed both original songs and classic covers, proving himself time and time again. Scroll down to learn more about John Foster and his musical journey. Where is John Foster from? John is from Addis, Louisiana. His roots are important to him and he paid tribute to them during his Idol audition by bringing the judges Cajun food in their own personalized coolers. Did John Foster graduate high school? Yes, John graduated from Brusly High School in 2024 and was even the Valedictorian of his class.