One of the most daring fashion trends in the entertainment industry is the “under-boob” look, which involves clothing that reveals the underside of the wearer’s chest. Jessi | @jessicah_o/Instagram From top idols like BLACKPINK‘s Jennie… BLACKPINK’s Jennie | @jennierubyjane/Instagram …to rookie actresses like TWICE Jihyo‘s sister, Lee Ha Eum, many stars have put their personal spin on under-boob…