Sunmi and Wanna One’s Kang Daniel delighted everyone with a spontaneous collaboration on the latest episode of “Happy Together”!

Wanna One’s Kang Daniel, Kim Jae Hwan, Bae Jin Young, and Hwang Min Hyun appeared as guests on the January 11 episode of “Happy Together,” along with Sunmi and more.

During the episode, Kang Daniel was asked about how he did a dance cover of “Gashina” before, and Kang Daniel replied, “She’s a senior artist I really admire.”

The hosts asked Sunmi if she’d seen his cover, and she replied, “I saw it all!” which had Kang Daniel covering his face in embarrassment.

Kang Daniel also said that he used to exercise to Wonder Girls’s “Tell Me.” Since Sunmi was a member of the Wonder Girls, the hosts asked if the pair would take the chance to dance together.

Sunmi and Kang Daniel then stepped up to impress everyone as they danced to “Gashina,” before taking on “Tell Me” as well.

Check out their dance below!