Adam Lambert performing on So You Think You Can Dance Finale

The "So You Think You Can Dance" two-night season finale airs Tuesday, Dec. 15 at 8 p.m. and Wednesday, Dec. 16 at 8 p.m. on Fox 29, and some of the year's hottest performers – including American Idol's Adam Lambert – are set to take the stage.

Lambert will sing his latest track, "Whataya Want From Me," in his first appearance on the network since the American Idol season finale in May. Adam Lambert captured the attention of the nation this year during the eighth season of Idol.

Throughout his much-celebrated Idol journey, Lambert surprised and impressed the judges every week with his takes on various musical genres. His out-of-this-world vocal range and unique musical style has helped Lambert conquer the Billboard charts with multiple debuts on the Hot 100 and the Hot Digital Songs charts.

His first album, "For Your Entertainment" (19 Recordings/RCA), recently debuted at No. 3 on the Billboard Charts with 198,469 albums sold in the first week.

Tuesday's final performance show will feature the ultimate showdown between the Top 6 finalists as they compete to impress the judges and capture America's vote. Immediately following the performance show, the phone lines will open and viewers will have the opportunity to vote for their favorite remaining finalists.

Then, tune in the following night for one of the most-anticipated television events of the fall. Wednesday's two-hour grand finale will feature surprise guests and special performances by this season's Top 20.

At the end of the celebration, host Cat Deeley will reveal America's vote and America's Favorite Dancer will be crowned live before millions of television viewers. The winner will dance off with a cash prize of $250,000 and will be featured on the cover of the March 2010 issue of Dance Spirit magazine.