On the April 23 airing of SBS Power FM's 'Choi Hwa Jung's Power Time,' singer Gummy and the duo GB9 joined as the guests. 

Gummy and GB9 shared the audience is the greatest encouragement during concerts. To this, DJ Choi Hwa Jung commented, "You must feel empty when people walk out during performances." 

Gummy replied, "That happened a lot in the past. It was like that when my turn overlapped with an idol group on music shows. But their manners have improved a lot."

GB9 agreed and said, "We've also had similar situations. But now everyone is more supportive of one another."