Rainbow made a special cameo appearance in SBS's "Dae Mul" on October 20th, and to the confusion of viewers, were allowed to perform their controversial 'belly button dance' for the show. Viewer message boards for the drama have been heating up with harsh criticisms and debates after the episode was aired. For the episode, Rainbow was hired to perform their 'belly button dance' in order to capture the attention of passing citizens and attract them to the political rally. Viewer message boards became flooded with comments such as, "What are the standards of judging whether something is appropriate for broadcast or not", "Dae Mul' has the same viewer rating for SBS's Inkigayo", "Shouldn't dramas receive the same punishment as music programs", and "I was watching the drama with my child and was highly surprised at the scene." To recollect, the dance was slammed for being too sexually suggestive when the girls lifted up their shirts to expose their belly buttons. Broadcasting stations banned the dance from airing, which forced an abrupt halt to Rainbow's "A" promotions. Source + Photo: Daily Sports