VIDEO: Sneak Peek - Promo for New Season of NBC's THE BIGGEST LOSER

NBC'S THE BIGGEST LOSER kicks off the new year January 6 (9-11 pm/ET) with the return of Jillian Michaels and a big, bold mission: to tackle the childhood obesity epidemic head-on by featuring kid participants (ages 13-17) for the first time ever in addition to adult contestants. Get a sneak peek below!

The kids work both at home and at the ranch, with a staff of medical professionals and childhood obesity experts monitoring their progress as they transform their lives.

Michaels will join popular returning trainers and top fitness experts Bob Harper and Dolvett Quince. Season 14 will also feature special celebrity guest stars and additional surprises.

"The Biggest Loser" is a production of Shine America, 25/7 Productions and 3 Ball Productions. Ben Silverman, Dave Broome, Todd Lubin, Lisa Hennessy, Eden Gaha, Paul Franklin, JD Roth and Todd A. Nelson are the executive producers.