Kim Yong Bin was suspected of not voting for Heo Chan-mi. On April 9, TV Chosun's "Miss Trot 4 Talk Concert" featured Kim Yong Bin, Ahn Sung-hoon, Boom, and others. During the broadcast, the cast had a candid moment to share their true feelings.

Heo Chan-mi pointed to Kim Yong Bin, who participated as a master on "Miss Trot 4," mentioning that the two are friends born in 1992. Heo Chan-mi said, "When Kim Yong Bin participated in the last season, I really cheered hard. I voted in the national support voting every day and also sent text votes during the finals. There are records of the text messages on my phone." She then expressed curiosity, saying, "I wonder if Kim Yong Bin voted for me."

Kim Yong Bin appeared flustered but soon replied, "I did too." However, when asked, "Can you prove it?" Kim Yong Bin explained, "I didn't bring my phone. And I changed my phone. The voting records disappeared." He expressed his frustration. When MC Jang Yoon-jung asked, "Did you only support Heo Chan-mi?" Kim Yong Bin avoided a direct answer and looked uncomfortable.