I still think of both her and Selena as primarily Disney.
The way to get rid of the Disney image and into the pop girl image is to get a smash (see Miley Cyrus-We Can't Stop, Wrecking Ball and Ariana Grande-Problem, Break Free) Neither Selena or Demi has had a smash that big so therefore they both seem more of Disney girls than pop girls. Selena transitioned more with the Justin Bieber relationship, Taylor Swift friendship (
), top five track, etc., but Demi hasn't really had that.