She's Back! Jillian Michaels Returns to The Biggest Loser

Jillian Michaels is returning to The Biggest Loser next year — and she's got her eye trained on childhood obesity.

Michaels, who left the reality weight-loss competition show in 2011 after 11 seasons, will return for Season 14, which will premiere in January, NBC announced Tuesday. And, in a new twist, the show will feature child contestants (ages 13 to 17) for the first time, in addition to adults.