A contract dispute has caused hundreds of songs to disappear from Spotify over night, and the k-pop community is not happy about it. Spotify just launched in South Korea (the sixth largest music market in the world) last month, and their new members are now threatening to cancel their subscriptions if their favorite music does not return. The K-pop and Korean hip hop artists affected include: Epik High, Monsta X, IU, Seventeen, Mamamoo, Apink, Zico, Block B, Lovelyz, Brave Girls, CNBlue, Younha and more.