New York: American Idol Kelly Clarkson is set to perform at America's most popular sporting event: the Super Bowl.

Clarkson has been chosen to sing the national anthem before the NFL championship game at Indianapolis on February 5, a person familiar with Super Bowl entertainment plans told The Associated Press on Wednesday.

The person spoke on the condition of anonymity because no announcement has been made.

The league is expected to reveal the anthem singer later this month. Since becoming the first winner of American Idol a decade ago, Clarkson has sold more than 20 million albums worldwide and had more than a half-dozen singles reach the top 10 in the Billboard Hot 100.

Among her hit songs: Since U Been Gone and My Life Would Suck Without You. Her latest album, Stronger, was released last year. Clarkson is currently on tour and appeared as the musical guest on Saturday Night Live last weekend.

Also slated to participate in the Super Bowl pregame festivities at Lucas Oil Stadium: country music couple Miranda Lambert and Blake Shelton, singing America the Beautiful.