Popsugar Fashion Red Carpet Stylish Stars That Are 21 and Under 20 Stars 21 and Under Who Influence Fashion in a Big Way October 14, 2014 by Sarah Wasilak View On One Page Photo 17 of 20 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 17 Saoirse Ronan, 20 Saoirse Ronan looks utterly romantic and perfect in a dress that might seem a little meh on someone a few years older. Previous Next Start Slideshow Selena GomezMiley CyrusCara DelevingneKendall JennerRed Carpet