"Shoulder length hair round face" refers to a hairstyle where the hair reaches the shoulders, designed to complement individuals with a round facial shape. For instance, a popular celebrity with shoulder length hair round face is Jennifer Lawrence.
This hairstyle is relevant because it flatters round faces by creating an illusion of length and balance. It can also accentuate eyes and cheekbones. Historically, shoulder length hair round face gained prominence in the 1920s, with the flapper style.