The 29-year-old K-Pop star, the leader of 13-member group Seventeen, made waves on the Met Gala red carpet in a monochromatic Boss look. By Nicole Fell S.Coups, the leader of K-Pop group Seventeen ...

But there's a reason the musicians — two-thirteenths of the superstar K-pop group Seventeen — are nicknamed the "Mastermind Duo." What the duo, or "subunit" in K-pop terminology, share is an ...