It's a tradition in Korea to celebrate something that is 100-day long already, like idol groups' debuts.
YG Entertainment's new girl group Blackpink has recently celebrated their 100th day after debut. They have posted on their instagram how they are thankful about everything, the support and love that fans have given them. They posted a photo from their debut performance on their instagram account with a caption saying that it was their 100th day since debut. They also said that it was just the beginning and they are hoping fans will give those lots of energy and will support them until the end.
They posted another picture, with the four members' head connecting and this time, the caption is in English. "#BLACKPINK#DEBUT#100THDAY#HAPPYDAY#THANKYOUEVERYONE#LOVEYOUALL Hello my loves. Thank you all for supporting us from day 1. We hope to see you guys soon and we always feel so blessed to have you guys by our side.
