On the June 27 airing of 'Video Star', MC Hyosung commented, "I heard you had a back hug with someone very hot. I really like him too. It's Kang Daniel" 

Cao Lu explained, "Two years ago, I performed 'Invitation' on the variety show 'Her Secret Weapon' and he was my dance partner."

Kang Daniel from MMO Entertainment worked as a backup dancer in the past. He's now preparing to make his debut in the group Wanna One. 

Cao Lu continued, "He worked very hard. I was watching TV and he appeared. So I was thinking, 'He succeeded this much?' Smile formed across my face because I was proud." 

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A short clip of Cao Lu and Kang Daniel's hot performance was shown, making the MCs squeal. 

Check out their sexy stage in the clips!