STAGE TUBE: Sneak Peek - Contestants Walks Out in Protest on Tonight's BIGGEST LOSER

On tonight's THE BIGGEST LOSER on NBC, the contestants walk out in protest over the producer's decision to allow previously eliminated contestants back into the competition. In the clip below, former professional wrestler Kim Nielsen reveals to show host Alison Sweeney and show lawyer Jeff Friedman why she doesn't think the twist is fair. The episode airs tonight at 8:00 pm on the NBC network.  

Hosted by Alison Sweeney, THE BIGGEST LOSER Season 13 features  contestants that include Nancy Rajala, who has 13 children and 55 grandchildren and didn't gain weight until she became a widow at 52, Nielsen, a former professional wrestler and single mother of three whose career ended when she broke her back in a wrestling match, and Roy Pickler, a Santa Claus and scout leader who wants to get in shape so he can continue taking scout troops on adventures as he has for almost 25 years.

Also competing this season is former Junior Olympic weight lifter Emily Joy, music producer Adrian Dortch, who has been a background vocalist for artists like Seal and David Foster, Ben Shuh, a father of nine children with a 10th on the way, and Cassandra Sturos, whose weight has held her back from pursuing her dream to move to New York and be a writer.

Get a sneak peek at tonight's episode below!