Jillian Michaels Returning To 'The Biggest Loser' Season 14 To Fight Childhood Obesity

Jillian Michaels is retuning to "The Biggest Loser" Season 14.

Jillian Michaels is returning to "The Biggest Loser!"

The longtime coach, who left the NBC reality weight-loss competition show after 10 seasons, will return to the series with a new goal in mind, according to NBC: ending childhood obesity.

Season 14 of "The Biggest Loser" will feature contestants between the ages of 13 and17 for the first time, NBC revealed, in addition to adult contestants.

Michaels and fellow trainers Bob Harper and Dolvett Quince will each coach one of three teams, each of which will feature at least one child participant. The children will not be eligible for elimination, but will compete with their teams and their progress will be feature each episode.

With childhood obesity at an all-time high, Michaels, who is a new mom of two, said in a statement that she is devoted to the cause. "As a former overweight teen, I know firsthand how dramatically weight issues can affect every aspect of a child's life," Michaels said in a statement. "Having recently become a mother of two, I am more passionate than ever about helping empower children and families with the information and resources they need to live a healthier life."

"The Biggest Loser" Season 14 will also feature special celebrity guest stars and additional surprises that will be revealed closer to the premiere.

See Michaels back in action with "The Biggest Loser" Season 14 kicks off in early January 2013.

Watch Michaels discuss her return with Al Roker on "Today" below.

Visit NBCNews.com for breaking news, world news, and news about the economy

Loading Slideshow

• River BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/17/i-lost-weight-river-jack_n_3163443.html" target="_blank">Read River's story here.</a>

• River AFTER

  <a href="http://www.huffingtonpost.com/2013/05/17/i-lost-weight-river-jack_n_3163443.html" target="_blank">Read River's story here.</a>

• Victoria BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/15/i-lost-weight-victoria-york_n_3155351.html" target="_blank">Read Victoria's story here.</a>

• Victoria AFTER

  <a href="http://www.huffingtonpost.com/2013/05/15/i-lost-weight-victoria-york_n_3155351.html" target="_blank">Read Victoria's story here.</a>

• Mary BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/13/i-lost-weight-mary-riddle_n_3155621.html" target="_blank">Read Mary's story here.</a>

• Mary AFTER

  <a href="http://www.huffingtonpost.com/2013/05/13/i-lost-weight-mary-riddle_n_3155621.html" target="_blank">Read Mary's story here.</a>

• Kristina BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/10/i-lost-weight-kristina-davis_n_3139651.html" target="_blank">Read Kristina's story here.</a>

• Kristina AFTER

  <a href="http://www.huffingtonpost.com/2013/05/10/i-lost-weight-kristina-davis_n_3139651.html" target="_blank">Read Kristina's story here.</a>

• Theresa BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/08/i-lost-weight-theresa-borawski_n_3061234.html" target="_blank">Read Theresa's story here.</a>

• Theresa AFTER

  <a href="http://www.huffingtonpost.com/2013/05/08/i-lost-weight-theresa-borawski_n_3061234.html" target="_blank">Read Theresa's story here.</a>

• Christian BEFORE

  <a href="http://www.huffingtonpost.com/2013/05/06/i-lost-weight-christian-anthony_n_3056324.html" target="_blank">Read Christian's story here.</a>

• Christian AFTER

  <a href="http://www.huffingtonpost.com/2013/05/06/i-lost-weight-christian-anthony_n_3056324.html" target="_blank">Read Christian's story here.</a>

• Katey BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/29/i-lost-weight-katey-dyck_n_2973114.html" target="_blank">Read Katey's story here.</a>

• Katey AFTER

  <a href="http://www.huffingtonpost.com/2013/04/29/i-lost-weight-katey-dyck_n_2973114.html" target="_blank">Read Katey's story here.</a>

• Tom BEFORE

  <a href="http://www.huffingtonpost.com/tom-w-watson/weight-loss-success_b_3117782.html" target="_blank">Read Tom's story here.</a>

• Tom AFTER

  <a href="http://www.huffingtonpost.com/tom-w-watson/weight-loss-success_b_3117782.html" target="_blank">Read Tom's story here.</a>

• Mandi BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/26/i-lost-weight-mandi-toan_n_2972936.html" target="_blank">Read Mandi's story here.</a>

• Mandi AFTER

  <a href="http://www.huffingtonpost.com/2013/04/26/i-lost-weight-mandi-toan_n_2972936.html" target="_blank">Read Mandi's story here.</a>

• Crystal BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/22/i-lost-weight-crystal-english_n_2956353.html" target="_blank">Read Crystal's story here.</a>

• Crystal AFTER

  <a href="http://www.huffingtonpost.com/2013/04/22/i-lost-weight-crystal-english_n_2956353.html" target="_blank">Read Crystal's story here.</a>

• Leah BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/19/i-lost-weight-leah-smith_n_2916032.html" target="_blank">Read Leah's story here.</a>

• Leah AFTER

  <a href="http://www.huffingtonpost.com/2013/04/19/i-lost-weight-leah-smith_n_2916032.html" target="_blank">Read Leah's story here.</a>

• Vanessa BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/24/i-lost-weight-vanessa-rabb_n_2972663.html" target="_blank">Read Vanessa's story here.</a>

• Vanessa AFTER

  <a href="http://www.huffingtonpost.com/2013/04/24/i-lost-weight-vanessa-rabb_n_2972663.html" target="_blank">Read Vanessa's story here.</a>

• Teresa BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/17/i-lost-weight-teresa-kidd_n_2907724.html" target="_blank">Read Teresa's story here.</a>

• Teresa AFTER

  <a href="http://www.huffingtonpost.com/2013/04/17/i-lost-weight-teresa-kidd_n_2907724.html" target="_blank">Read Teresa's story here.</a>

• Jenalee BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/15/i-lost-weight-jenalee-hill_n_2902874.html" target="_blank">Read Jenalee's story here.</a>

• Jenalee AFTER

  <a href="http://www.huffingtonpost.com/2013/04/15/i-lost-weight-jenalee-hill_n_2902874.html" target="_blank">Read Jenalee's story here.</a>

• Donesha BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/10/i-lost-weight-donesha-bolden_n_2862429.html" target="_blank">Read Donesha's story here.</a>

• Donesha AFTER

  <a href="http://www.huffingtonpost.com/2013/04/10/i-lost-weight-donesha-bolden_n_2862429.html" target="_blank">Read Donesha's story here.</a>

• Melody BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/08/i-lost-weight-melody-regnary_n_2823091.html" target="_blank">Read Melody's story here.</a>

• Melody AFTER

  <a href="http://www.huffingtonpost.com/2013/04/08/i-lost-weight-melody-regnary_n_2823091.html" target="_blank">Read Melody's story here.</a>

• Courtney BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/05/i-lost-weight-courtney-dyer_n_2819602.html" target="_blank">Read Courtney's story here.</a>

• Courtney AFTER

  <a href="http://www.huffingtonpost.com/2013/04/05/i-lost-weight-courtney-dyer_n_2819602.html" target="_blank">Read Courtney's story here.</a>

• Stephen BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/01/i-lost-weight-stephen-mariani_n_2813514.html" target="_blank">Read Stephen's story here.</a>

• Stephen AFTER

  <a href="http://www.huffingtonpost.com/2013/04/01/i-lost-weight-stephen-mariani_n_2813514.html" target="_blank">Read Stephen's story here.</a>

• Robin BEFORE

  <a href="http://www.huffingtonpost.com/robin-hoffman/weight-loss-success_b_2910620.html" target="_blank">Read Robin's story here.</a>

• Robin AFTER

  <a href="http://www.huffingtonpost.com/robin-hoffman/weight-loss-success_b_2910620.html" target="_blank">Read Robin's story here.</a>

• Benjamin BEFORE

  <a href="http://www.huffingtonpost.com/2013/04/03/i-lost-weight-benjamin-gerhardt_n_2819453.html" target="_blank">Read Benjamin's story here.</a>

• Benjamin AFTER

  <a href="http://www.huffingtonpost.com/2013/04/03/i-lost-weight-benjamin-gerhardt_n_2819453.html" target="_blank">Read Benjamin's story here.</a>

• Janne BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/27/i-lost-weight-janne-mcneill_n_2916306.html" target="_blank">Read Janne's story here.</a>

• Janne AFTER

  <a href="http://www.huffingtonpost.com/2013/03/27/i-lost-weight-janne-mcneill_n_2916306.html" target="_blank">Read Janne's story here.</a>

• Brittney BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/22/i-lost-weight-brittney-s-wheeler_n_2792300.html" target="_blank">Read Brittney's story here.</a>

• Brittney AFTER

  <a href="http://www.huffingtonpost.com/2013/03/22/i-lost-weight-brittney-s-wheeler_n_2792300.html" target="_blank">Read Brittney's story here.</a>

• Megan BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/25/i-lost-weight-megan-cooper_n_2813268.html" target="_blank">Read Megan's story here.</a>

• Megan AFTER

  <a href="http://www.huffingtonpost.com/2013/03/25/i-lost-weight-megan-cooper_n_2813268.html" target="_blank">Read Megan's story here.</a>

• Clara BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/18/i-lost-weight-clara-osborn_n_2765912.html" target="_blank">Read Clara's story here.</a>

• Clara AFTER

  <a href="http://www.huffingtonpost.com/2013/03/18/i-lost-weight-clara-osborn_n_2765912.html" target="_blank">Read Clara's story here.</a>

• Lee BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/15/i-lost-weight-dr-lee-coleman-jr_n_2765622.html" target="_blank">Read Lee's story here.</a>

• Lee AFTER

  <a href="http://www.huffingtonpost.com/2013/03/15/i-lost-weight-dr-lee-coleman-jr_n_2765622.html" target="_blank">Read Lee's story here.</a>

• Debbie BEFORE

  <a href="http://www.huffingtonpost.com/2013/03/20/i-lost-weight-debbie-lazinsky_n_2768877.html" target="_blank">Read Debbie's story here.</a>

From our partners

• Guillermo Del Toro Is Heading To HBO - insidetv.ew.com
• 'Glee' Star Thinks The Show Did A 'Great Job' With The School Shooting Episode - www.tvguide.com
• First Look At The New Season Of 'Arrested Development' - EW