On the May 5 episode of Singing Battle, a few girl group seniors and juniors reunited for an exciting competition.
Heo Young Ji first competed against comedian Boom with My Ears Candy, originally by Baek Ji Young and featuring 2PMs Taecyeon. Heo Young Jis sweet voice led to her victory over the comedian with a score of eleven over two.
Heo Young Ji then selected girl group senior Jeon Ji Yoon as her next competitor. Gummys Childish Adult was selected as their song, and Heo Young Ji expressed that she was less confident about this song. Her team leader Park Soo Hong then called out for their hidden card, who was revealed to be Secrets Song Ji Eun.