Demi Lovato was 23 in Smurfs: The Lost Village when she played the character 'Smurfette (voice)'.
That was over 7 years ago in 2017.
Today she is 31, and has starred in 24 movies in total, 10 of those since Smurfs: The Lost Village was released.
In Smurfs: The Lost Village, I think Demi Lovato looks: