Sunscreen has a bad reputation. "Every time we prepare for a new album or do a photo shoot, we take on new and different styles, which feel amazing every time," HONG EUNCHAE, the youngest member of the new "it" girl group LE SSERAFIM, explains. You'll definitely want to trade in a sporty yoga mat or water bottle for a hot bag-and an even hotter shoe. Wear a ring that dances as much as you do on...