Demi Lovato: 'Young Adults' Mentor on 'X Factor'

Demi Lovato stays classic in black while out and about in New York City on Thursday (October 11).

The 20-year-old X-Factor judge is set to mentor the Young Adults (17-24) for the rest of the season. Simon Cowell will mentor Groups, L.A. Reid will mentor Over 25s (25 & up), and Britney Spears will mentor the Teens (16 & under).

Yesterday, Demi re-Tweeted something comedian Chris Rock said: “Most people don’t realize this, but you can eat organic, all natural, gluten-free food without telling everyone around you.” Ha!

10+ pictures inside of Demi Lovato out and about in NYC…