On April 23rd, Hope Bridge National Disaster Relief Association revealed that actress Park Shin Hye donated 50 million won for Sewol victims and rescue operation of the sinking ferry.
In particular the agency didn't know about her donation until the articles came out. They later checked with the Park Shin Hye and she admitted that she did donate to the association. Originally she just wanted to do it quietly but since everyone knows about it now, she's embarrassed about it.
Park Shin Hye also tweeted her concern about the tragedy on April 18th and used a photo of the "Yellow Ribbon Campaign" as her Twitter avatar.