American Idol" On Key for Sixth Season Opener

A warning to every other show on television: "American Idol" is coming back to rule the airwaves.

The FOX singfest starts its sixth season on January 16 and 17 at 8PM ET/PT, with two hours each night. After that, the show will air Tuesday nights at 8PM ET/PT and Wednesday nights at 9PM ET/PT. Set your Tivos!

The first three weeks will feature audition cities Los Angeles, San Antonio, Birmingham, Memphis, Minneapolis, New York City and Seattle. Aussie canary Olivia Newton John, singer/songwriter Carol Bayer Sager and yodeller Jewel will appear as guest judges during the audition rounds. The semifinal rounds will air February 6-7 and 13-14.

Taylor Hicks was crowned "American Idol" last season. Previous winners were Kelly Clarkson, Ruben Studdard, Fantasia and Carrie Underwood.