On the May 12 broadcast of KBS2's 'Unnies' Slam Dunk 2', the members dedicated a congratulatory song prior to vocal trainer Jang Jin Young's wedding ceremony with actress Kang Hae In, set to be held this October.

The SM trainer made a special appearance in the group's "Right?" MV, and the members took the chance to interrogate him while filming! Hong Jin Young asked, "Do you have a girlfriend?" to which Jang Jin Young answered, "I'm getting married." Jeon So Mi asked next, "How long have you been dating?" and Jang Jin Young answered, "Ten years."

With that, Kim Sook suddenly said, "Do you love her?"  He then replied confidently, "I do!"

Lastly, Jeon So Mi added, "We'll sing the congratulatory song", and hearing this, Kim Sook started to sing Yang Hye Seung's "Splendid Single" as the members joined in. 

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