'Idol' alums swarm Orlando for "the experience"

David Cook was one of many Idol alums that today came out to celebrate the grand opening of the brand new "American Idol: The Experience" attraction at Walt Disney World's Hollywood Studios theme park in Orlando, Fla. To kick off the day, he performed a few songs on ABC's Good Morning America including "Declaration" and "Lie," which can be viewed below:

There were a few technical difficulties with the audio during the performance, but the kinks were worked out by the time the performance aired in the central time zone. David Archuleta was also on the morning show to chat with Sam Champion on the attraction's lifelike stage and lead some fans in what was supposed to be like an actual onstage performance (he sang a bit of "Life Is a Highway").

Earlier this evening, a throng of Idol has-beens and still-ares graced the blue carpet right outside the attraction, where they took photos with fans and spoke with countless media outlets. Then, an historic moment in the Idol world happened, as all seven winners took the same stage for a bit to add to the excitement.

Following the display a concert of sorts took place with the alums, during which Cook performed with Carrie Underwood, as the two winners did a duet on Fleetwood Mac's "Go Your Own Way." Watch the performance below:



Look for more footage and exclusive photos to be shown on Good Morning America tomorrow morning.