Venues for each city will be announced later. Other audition cities may also be added at a later time. The show's web site, idolonfox.com, will carry updates on the audition process.

About 50,000 people flocked to seven cities last fall to try out for the second "American Idol." When the show ended in May, Studdard was the last man standing, narrowly beating Aiken to claim the title of American Idol. Both singers have since seen their debut singles hit the top of the Billboard charts; full-length albums from Studdard and Aiken are due later this year.