Kelly Clarkson is 42 years and 7 month(s) old. She was born in 24 Apr, 1982. Kelly Brianne Clarkson was born on April 24, 1982. She is an American songwriter, singer, and author of children’s book. Her rose to stardom began in 2002 when she won the first edition of American Idol. Since then, she has established herself as the real American Idol. Her mother is Jeanne Ann and her father is Stephen Michael Clarkson. The 34-year-old musician is married.