On 8th of August 2008, Clay announced the birth of his son Parker Foster Aiken. An American actress Jaymes Foster is the mother of this child. His sexuality was a matter of talking point in the media. At the end of 2008, he revealed that he is gay in an interview with People magazine. He has never been married and there is no any information about his wife. His nationality is American and he has white ethnicity.
Clay's musical talent propped up when he was in his young age. During his childhood days, he used to sing in the Raleigh Boychoir. During his teens, he was found singing in musicals and local theatre as well as in school choirs and church choir. After his high school graduation, he joined the band Just By Chance as its lead singer. Later on he also performed in the show Just by Chance and Friends. In the early 2003, he performed on the second season of American Idol. In the audition round, he sang Always And Forever and he advanced to the top 32. During this round, he sang Open Arms. In the top 2 round, he sang This Is the Night, Here, There and Everywhere and Bridge over Troubled Water. He was announced the runner up of this competition on 21st of May 2003. On 14th of October 2003, he released his debut album Measure of a Man. His second album Merry Christmas with Love was released at the end of 2004. In 2003, he performed in several TV shows. That year, he appeared at the Jerry Lewis MDA Telethon where he sang Bridge Over Troubled Water. At the end of 2004, he starred in the TV show A Clay Aiken Christmas. He was also an executive producer of this TV show. In the early 2005, he starred the role of a cafeteria worker Kenny in a cal comedy-American medidrama television series Scrubs. His net worth is $6,000,000.