IU is South Korea's darling. She holds the title "Nation's Sweetheart" like Leonardo da Vinci's Lady holds an Ermine and just like the Lady with an Ermine, IU is very beautiful and very popular.
But…Mona Lisa is even more popular. The most popular in the world, Beyoncé is—and this is no exaggeration—modern music's Mona Lisa. Beloved by all, this includes Gen X, Gen Y and Gen Z. Speaking of Gen Z…