IU has recently been 'terrorized' as part of an April Fool's joke. On April 1st, IU fans got the shock of their lives after they saw that IU's picture was swapped for Shin Bong Sun's on one of the IU fansites. It was reported that a fan played the joke because they are frequently compared to one another. Netizens commented, "IU has experienced the April Fool's terror", "Because of IU, Shin Bong Sun got herself a fan page", and�"This is IU terror. Replace the picture!". Other fan pages experienced similar changes, which provided big laughs for many netizens. Source: TV Daily via Nate