Princess Star Butterfly (Star vs. the Forces of Evil)

Princess Star Butterfly wears her very first outfit, her blue puffy royal princess dress, from the first episode of Disney's Star vs. the Forces of Evil, "Star Comes to Earth", as well as the opening sequence of the show's first two seasons.

Despite its limited screen time, it was the most iconic outfit that Princess Star Butterfly ever wore, among most of the SVTFOE fans.

For the possible animated movie for the Disney+ streaming service. "Princess Star Butterfly of Mewni", as well as the possible Disney Princess franchise of the same name, Star actually wears it, as her most iconic outfit.