On a recent recording of "Heroes," IU arrived on set with a number of blankets that had the logo "Heroes" inscribed on them. The gift was a highly welcomed one as she passed them out to every "Heroes" member, who they were already tired and cold from the long recording. When asked how she thought of preparing something so special, IU revealed that it was actually a gift from her fanclub in celebration of her 2-year debut anniversary. Each member was given a separate bag containing not only the blankets, but other items such as pink eye masks and a personally written letter. IU revealed, "My fanclub told me that they sent it because they thought I was having a hard time adjusting with everyone since I'm the youngest of the group. I'm not good at expressing myself so I wasn't properly able to thank them, but I was truly touched that they remembered my debut anniversary and even prepared meaningful presents."