With just one week to go before the finale, the top three "American Idol" finalists went for broke in the race to be the final two on Wednesday night.

And what better way to put the pressure on Caleb Johnson, Alex Preston and Jena Irene than to have it all go down on the show's 500th episode? It all kicked off with a montage of the show's greatest moments. There was the first time we saw Kelly Clarkson, the transformation of Clay Aiken, KEITH!, William Hung, Bikini Girl and even Simon Cowell's correct prediction about Carrie Undewood's record sales.

Plus, winners Underwood, Phillip Phillips,  David Cook, Kris Allen, Candice Glover, Lee DeWyze, Fantasia Barrino, Scotty McCreery, and Jordin Sparks all gave videotaped thank yous to the show for their starts, while the remainder of the top 10 gave support from the audience.

Of course, no top three week would be complete without homecoming footage, and there were plenty of great moments to be seen. The evening also included a special appearance by The Chainsmokers and a performance, of sorts, of their hit song, "Selfie."

The show began with disturbing news from the Idol doctor that Caleb Johnson is struggling with bronchitis and a "small vocal cord" hemorrhage.  Would he be up to the challenge on a night where each singer had to do three songs?

  • Find out how it all played out at THR.com