Celebrities like Carrie Underwood, the Jonas Brothers, Seal, ZZ Top, and One Republic all turned out for the grand finale of "American Idol" Season 7, where David Cook won the title by a landslide.Thursday, May, 22, 2008, 5:22 AM

David Cook is crowned the Season 7 "American Idol" winner.FOX/Michael Becker - Thursday, May, 22, 2008, 5:22 AM

David Cook is crowned the Season 7 "American Idol" winner.FOX/Michael Becker - Thursday, May, 22, 2008, 5:22 AM

David Cook is crowned the Season 7 "American Idol" winner.FOX/Michael Becker - Thursday, May, 22, 2008, 5:22 AM

David Cook performs on stage with ZZ Top during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

David Archuleta and David Cook on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

David Cook and David Archuleta on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Carrie Underwood performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Carly Smithson performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

George Michael performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 PM

Bryan Adams performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Amanda Overmyer performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

The Final 12 perform during the grand finale of "American Idol" Season 7.FOX/Michael Becker - Thursday, May, 22, 2008, 5:22 AM

Syesha Mercado peforms on stage with Donna Summer during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Seal and Syesha Mercado on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Syesha Mercado performs on stage with Seal during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Dancers from "So You Think You Can Dance" perform on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Nick Jonas of the The Jonas Brothers performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Mike Meyers as "The Love Guru" and Ryan Seacrest during the grand finale of "American Idol" Season 7.FOX/Micahel Becker - Thursday, May, 22, 2008, 5:22 AM

Actor Mike Myers on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Kevin Jonas of the The Jonas Brothers performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Jordin Sparks performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Joe Jonas of the The Jonas brothers performs on stage during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM

Brooke White performs on stage with Graham Nash during the grand finale of "American Idol" Season 7.Michael Caulfield/WireImage.com - Thursday, May, 22, 2008, 5:22 AM