American Idol's All-Time Best Performance Final: It's Kelly Clarkson or Adam Lambert!

“What’s the best ever American Idol performance?” Every Idoloonie has a passionate answer to that question, but here at TVLine.com, we’ve spent the last month trying to reach a definitive consensus on the subject. Indeed, we began with 64 players at the start of TVLine.com’s American Idol All-Time Greatest Performance Bracket Tournament, and now we’re down to just two: Kelly Clarkson’s “(You Make Me Feel Like) A Natural Woman” and Adam Lambert’s “Mad World.” (Adam prevailed over Kris Allen’s “Heartless,” 59.6% to 40.4%, and Kelly beat Melinda Doolittle’s “My Funny Valentine,” 69.8% to 30.2%, in our semifinals.)

Polls for our final matchup will be open for the next 48 hours, but before you pull the trigger at the ballot box, you may want to peruse these memory-refreshing links to our mighty combatants:

Performance Links!
Kelly Clarkson, “(You Make Me Feel Like) A Natural Woman
Adam Lambert, “Mad World

Watch those videos now, then head down to our polls to vote for your favorite, and hit the comments to justify your picks.

And if you’re interested in seeing how Kelly and Adam made the finals, click here to check out the entire 64-player bracket (then click again for a zoomed in view), and sign up to follow me on Twitter @MichaelSlezakTV.