Singer IU shared a sweet photo of a congratulatory ad fans had placed in a subway for her 3rd anniversary. On September 18th, IU celebrated her 3rd anniversary of her debut. Fans put up the sign to commemorate this special day, and IU took a picture in front of it to show her gratitude. The ad shows cartoon depictions of IU's various looks from her career, starting with her song "Mia" to her latest, "The Story I Did Not Know". In the photo, the star is seen wearing a casual hoodie while gleefully holding up double 'V' signs. She also added a speech bubble that says, "My fans are the best". Netizens wrote, "IU knows exactly what to do", "Her fans really care for her", and "No matter where she goes, IU always looks cute." Source: DongA via Naver