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Her career to date in pictures
An excited Kelly progresses to the next stage on American Idol.
A tearful Kelly is told she has won the ever season of American Idol.
With our very own Pop Idol winner, Will Young.
Appearing on US chat show, Jay Leno the night after being named the American Idol champion.
With action movie star, Jackie Chan in 2002.
American Idol season two finalists, Clay Aiken and Ruben Studdard present Kelly with a platinum disc for her debut album, 'Thankful'.
At the world premiere of Love Actually in New York. Kelly performed the song 'The Trouble With Love' on the movie's soundtrack.
Making one of her first UK TV appearances, performing 'Miss Independent'.
Kelly makes a new friend at Seaworld in San Diego.
A very wet Kelly Clarkson shows off her moon man at the 2005 MTV Video Music Awards.
Kelly arrives at the 2006 BRIT Awards.
Performing a headline show at Hammersmith Apollo.
Proudly showing off her two Grammy Awards in 2006 - she won trophies for Best Female Pop Vocal Performance and Best Pop Vocal Album.
Performing at the New Jersey leg of the Live Earth concerts.
Appearing on MTV's TRL show in 2007.
Not something you get to do every day - sing for the Pope!
On tour in Sydney, Australia in 2008.
The amazing single cover for her single, 'My Life Would Suck Without You'.