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.