Through a series of dances, both new and old, the final winner of the season is revealed.

The 10 remaining acts take the stage for their last performances before tomorrow night's finale, when the $1 million winner will be revealed. Celebrity guests on hand to offer the finalists pointers include Master P, Yolanda Adams, Chaka Khan, John Popper, and Penn and Teller.

Can a car stereo destroy a car with just sound? Tory, Kari, and Grant hit the road to take on two tall tales from down under.

Heidi warns the designers that the upcoming challenges are going to be much tougher than the previous ones. Her prevision proves to be true the following day when they are taken to a warehouse of recyclables. Here, Tim explains, the designers will collect all the materials needed to make their outfits. They will also be allowed to go to an art store for paint and other supplies necessary for embellishments. This challenge is all about innovation and creativity.

Seeking relief from his hectic lifestyle, a man spends 30 days using new age methods to improve his personal well-being.

Krista's newly turned mother escapes from the hospital. In Vegas, Chase meets up with old flame Alex, a wealthy Pure Blood who encourages her to leave Marcus. Blade and Krista try to track down Krista's mother to get her on the serum that can keep her from killing.

TONIGHT: The co-author of Without Precedent: The Inside Story of the 9/11 Commission, Thomas Kean!

Tonight Stephen welcomes documentary filmmaker and host of 30 Days, Morgan Spurlock.