Hiya PopAsians! PopAgent Jay K here with this week's PopAsia 101 on.. S4! S4 are a boyband of 4 (makes sense) from Indonesia! Found from the finalists of Indonesian talent show Galaxy Superstars, the boys have been making waves in IndoPop with their cool sound and distinct image. What does S4 stand for? Find out in this week's 101 ASAP! As always tell me what you think on Twitter @JayK_SBSPopAsia!