Girl's Day recently recorded for�KBS 2TV's 'Yoo Hee Yeol's Sketchbook,' which will air on February 7 in Korea, and revealed that they had a very hard time because they succeeded later than all the other girl groups that debuted around the same time.

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At the recording, the girls said that one of the biggest changes resulting from their greater popularity was more earnings. �They also talked about how their image changed a lot since debuting and how their appearances changed so much that they would be shocked when they saw past photos of themselves.

They also confessed that they went through a very hard time because they garnered attention much later than girl groups like SISTAR and miss A, both of which debuted in the same year as Girl's Day in 2010. �Well, all the hardship these girls endured was worth it because now the girls are doing tremendously well with "Something," earning trophies on music shows left and right! �Congratulations to the girls for these achievements.