Sunmi revealed her thoughts on YooA's cover of "Full Moon".

On the December 30th episode of 'Running Girls', the cast members shared their thoughts on each other's performances, and Sunmi watched YooA's cover of her 2014 hit song "Full Moon". Sunmi expressed, "I've seen this before. You're so pretty. I think it's a song that matches YooA well."

YooA shared her embarrassment, saying, "It was difficult to retain balance," and Sunmi added, "This song is like YooA's song."

Check out the clip of 'Running Girls' moment above!