Hyorin had featured on the hip-hop duo's track "Hot Wings" on their 7th album 'Luckynumbers'. When the pair came out onto the July 11 show of KBS Radio Cool FM's 'Hong Jin Kyung's 2 O' Clock', the DJ asked them, "Didn't you develop feelings for Hyorin while you were recording with her?"

Choiza answered honestly, "Of course I did. How can you not develop feelings when you're working with SISTAR's Hyorin?"

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DJ Hong Jin Kyung then asked, "If she asks you out, would you date her?", and he answered immediately, "Realistically, I don't think she'd ask me out. But I don't think there are many men in Korea who'd say no if Hyorin asks them out."

Gaeko added, "On the day Hyorin came to record, I've never seen Choiza come so early to the studio for a recording like he did that day."