Dal Shabet's Subin made a fun guest appearance on MBC's 'Radio Star' on January 1 and asked to hear Kim Gu Ra's criticisms.

Although it may be a strange request, Subin explained, "I feel like if I listen to Kim Gu Ra's criticisms, our album will be a huge hit," as Dal Shabet will be making their comeback in January.

SEE ALSO: Viewers note the stark difference between MAMA venues in the U.S. and Japan

Kim Gu Ra complied with her wishes. �He said, "It's too bad. �Girls' Day�gained recognition for 'Female President,' but what have Dal Shabet been doing during that time?"

Subin pointed out, "Girls' Day is our senior by one year," but Kim Gu Ra did not care, saying, "That is an excuse." �He then laid it on a bit thicker with, "Do you really want me to bad-mouth? �You guys can't do it with that completely rotten state of mind."

Subin said, "Truthfully, I am a fan of Kim Gu Ra . . . He's blunt and criticizes roughly, but I feel like there is a small scar on his heart and he seems forlorn."

Hopefully this strange tactic worked and Dal Shabet will have a successful album!