Millie Bobby Brown Paints Stephen Colbert's Nails For UNICEF - Watch!

Millie Bobby Brown is having some fun!

The 14-year-old Stranger Things star made an appearance on The Late Show With Stephen Colbert on Monday night (November 19).

PHOTOS: Check out the latest pics of Millie Bobby Brown

During her appearance, Millie discusses being the youngest UNICEF Goodwill Ambassador and paints Stephen‘s nails UNICEF blue in honor of World Children’s Day on November 20.

She also discussed being friends with her family and her inner circle, as well as doing “normal things” like going to the grocery store.

Watch below!