SEE ALSO: Jaekyung revealed to have been the art director for Rainbow BLAXX's logo designs and images

The Rainbow subunit went all out for their sexy concept with a floor dance, but following some concern about the level of appropriateness, they've decided to modify their choreography. Dal Shabet and AOA have also followed the same route with adjustments.

A DSP Media rep stated, "Although the choreography had a minor modification, there is no change to Rainbow BLAXX's sexy concept. As much as it is a stage that the members planned and prepared for a long time, we hope that a lot of people enjoy it."

In response to the controversy surrounding the 19+ rated choreography and stage outfits, which seems to have become a trend among girl groups, a 'Music Bank' rep told Star News on January 24, "Starting with the live broadcast of 'Music Bank' on the 24th, Rainbow BLAXX, Dal Shabet, AOA, Girl's Day, and more will perform on stage with a modified version of their mature choreography and stage outfits."

"These girl groups are becoming embroiled in controversy for the sexual nature of their stage outfits and choreography. According to the requests of the KBS viewers, we have decided to minimize the sexuality of the girl groups... Through the pre-recording, the choreography and outfits are being modified. The 'split-leg dance' and 'groping' choreography will be modified and then aired... The unmodified parts during the live broadcast will not appear on camera and will instead give a close-up of the artists' faces."