The former 'Idol' co-host congratulated the show for 'struggling along for another 14 seasons' without him.
ET is revisiting some of the best and worst moments the American Idol judges have had over the course of 15 memorable seasons.
The bittersweet end to American Idol is upon us and while we hate to see it leave, we love watching all the alums pay tribute as it goes.
Less than 24 hours after her big win, Clarkson stopped by the ET studio for a sit-down with Mary Hart.
Watch the beautiful vid, which was filmed at a summer camp in California.
The singer told ET his new song with Underwood will be a 'call-and-response' duet called 'The Fighter.'
Less than 24 hours after her big win, the Texas native was sitting down with Entertainment Tonight in the studio.
The new offering comes on the same day 'Idol' concludes its 15-season run
You know you're going to miss 'AI' when it's gone.
Clarkson revealed it was the first time she had ever voted for an 'American Idol' contestant, even herself!
The end of 'Idol' is upon us and while we hate to see it leave, we love watching all the alums prep for their final Idol stage appearances.
Simon and Paula might have been the cutest frenemies in reality TV history.
The 46-year-old singer put her legs and cleavage on display in a jaw-dropping Zuhair Murad gown.
The 'American Idol' judge also shared his thoughts with ET on the show's final two, who he calls, 'Incredible singers.'
