<!– — Flawless singing, flawless choreography and flawless skin – K-pop idols are known for their UH-mazing complexion even after caking on layers of makeup for their stage performances. Many idols have also collaborated with K-Beauty brands and accumulated plenty of skin care knowledge and tips of their own.   A veteran in the K-pop industry, Jessica Jung has many tricks up her sleeve in regards to skin care. Jessica revealed her 16-step beauty routine on Vogue’s YouTube channel and…