Last year, Taeyeon was overwhelmingly the top among the Big3 and these days, Psycho is just topping everything. Right now, Taeyeon also entered the chart at #3 and is #1 right now. Joy's OST is also climbing back in the charts and Baekhyun's OST almost never fell down since January. And among the male idols of the Big3, EXO are the strongest digitally....