(Photo : HyunA Instagram) HyunA is known as one of the sexiest K-pop stars, and she has even earned herself the nickname "Sexy Ya Seng Mah," which translates to "Sexy Little Wild Horse." On stage, HyunA has no problem showing off her stunning figure. As the idol has a large bust and a tiny waist, wearing crop tops help the soloist achieved that snatched look! 7. GFRIEND's Yerin (Photo : News1) While most idols who wear crop tops look sexier when they do so, wearing such clothes only makes Yerin look cuter! Thanks to her innocent aura and her attractive visuals, wearing a crop top only plays up on the