The Kiss lead singer Paul Stanley opened the show and got a standing ovation from the audience. Other big names appeared too like Janet Jackson, Christina Aguilera, Alanis Morisette, Chicago, Michael Leers, The Beegees and so much more. Paula Abdul made an appearance too.
And finally winning over Crystal Bowersox, Lee DeWyze is American Idol Season 9 grand champion.
All AI former finalists and winners from Season 1 to 8 were there like Kelly Clarkson, Jason Castro, Taylor Swift, Ruben Studdard.