Season 1 and Season 10 'American Idol' winners Kelly Clarkson and Scotty McCreery will perform on the stage where it all started once again. Thursday (April 11) is the results episode for the Top 6 of Season 12, and two of the show's biggest and most successful winners will teach the last half-dozen hopefuls how it's done.

First-ever 'Idol' Clarkson will perform her new single 'People Like Us' from her 'Greatest Hits' collection. It has not yet been confirmed which track McCreery -- who took the crown during Season 10 in 2011 -- will sing, but it's likely to be his just-released new single, 'See You Tonight.'

Both stars are considered favorites in country, with Clarkson slowly but surely crossing into a more permanent twang, while McCreery helped further solidify the genre's legitimacy on reality singing shows.

McCreery and Clarkson's 'American Idol' appearance airs at 8PM ET on your local Fox affiliate.