'American Idol' Ends 15-Season Run With Star-Studded Finale

Past "American Idol" stars Kelly Clarkson, Carrie Underwood and Jennifer Hudson all performed on the series finale.
4:14 | 04/08/16

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Transcript for 'American Idol' Ends 15-Season Run With Star-Studded Finale
Test Text1 plain 7:40 back now with the end of an era. "American idol," the groundbreaking singing competition saying good-bye after 15 seasons with an amazing finale after launching the careers of everyone from Kelly Clarkson to Carrie Underwood and nick watt is there. Good morning, nick. Reporter: Good morning, Lara. Well, you know at its peak this show reached 38 million people. But it's over, last night the big finale kicking off with two young finalists singing their hearts out. ♪ Walking alone in the dark ♪ ♪ two can make a light shine through ♪ ♪ it's takes two baby ♪ ♪ it takes two baby ♪ ♪ just me and you ♪ Reporter: But 15 years of "Idol" took many more flooding the stage. ♪ ♪ looking like a fool ♪ ♪ she bangs she bangs ♪ Reporter: Yeah, even William hung. ♪ She bangs she moves she moves ♪ Reporter: Remember season one had a co-host. The new fox series "American idol." Reporter: Then and now. Since you're here why don't you bring out our judges. I got nowhere else to go. ♪ Skies above ♪ Reporter: And season one, this audition. Kelly Clarkson is about to have her baby. Reporter: Show she taped this. ♪ For a moment like this ♪ Reporter: She beat Justin. ♪ simpler times. No Twitter, no Facebook. Reporter: For the finale this Twitter shoutout. This show transformed television. It inspired young artists and captivated audiences across the country and it taught America what it means to be pitchy. He did drive us all a little crazy. They are losers and do not deserve to be in this competition. America is about celebrating the effort -- Don't give me that America rubbish, Paula. Reporter: The original lineup. ♪ Dreadful. Pathetic. Hated it. Everything about it was grotesque. Did you really believe you could become the "American idol"? Yes, sir. Well, then you're deaf. Reporter: And the new J. Lo quick change. Shaking it. ♪ Let's get down ♪ It was the defining show of our time. It brought America together and brought families together with Kelly Clarkson ♪ since you been gone ♪ ♪ well I can breathe for the first time ♪ A Jennifer Hudson. ♪ That is no good ♪ Reporter: Then and now. ♪ ♪ Wouldn't have a Carrie Underwood. ♪ I can't make you love me if you don't ♪ Reporter: Then and now. ♪ So you had a little trouble in time ♪ ♪ you you're keeping some demons down ♪ Reporter: Almost forgot. The winner of "American idol" season 15 is Trent Harmon. Surprise. I worked so hard and she pushed me to do it. We say from Hollywood good night, America. For now. Reporter: Kind of a cryptic ending from Seacrest there. I think we will see some kind of "Idol" back tweaked format but that is the last we will ever see of "Idol" as we have known it and right after the show they announced that the winner and the runner-up both get a record deal. All right. Lara. How is that for a happy ending? ? That's fantastic. I don't think that for now was all that cryptic. More to come. Yeah and knowing Ryan, absolutely. Do you have a favorite "Idol" moment or -- William hung. Everyone remembers moments in history. I remember where I was on the season finale of season one when Kelly Clarkson won. I was on vacation and ran back to the hotel room to watch it. I was really into the show. Jennifer Hudson. Fantasia crying after she had

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