On February 19 episode of SBS' television show 'Running Man', Byul, singer Seogi and comedian Heo Kyung-hwan made a guest appearance.
After the guests joined the members of 'Running Man', they were asked if they could show them some dance.
Seogi went first; she energetically danced to 'I NEED YOU' by boy group BTS and 'VERY NICE' by SEVENTEEN.

Upon listening to her words, HAHA said, looking more nervous than Byul, "Let's not get her to perform... Can't we just say that she performed already?"
Byul laughingly stated, "I practiced the moves for NewJeans' 'Hype Boy' while looking at myself in the mirror last night. Do you guys know what HAHA said to me then? He was like, 'Please don't dance.' He pretty much begged me not to dance today."

Byul seemed as if she was not confident with her dance before the performance, but she was surprisingly good at it.
As soon as Byul started to dance though, HAHA blushed in embarrassment and continued to laugh hard.
He screamed out loud, and even ran in the opposite direction to everyone, towards the mountains behind them.

(SBS Star)