정용화&선우정아 콜라보는 '불꽃놀이'보다 '입김'이 더 좋다. 좀 뻔한 결과물이긴 해도 멜로디나 보컬의 호흡이 훨씬 안정적. '불꽃놀이'도 나쁘지 않지만 '입김'쪽이 더 귀에 들어오네. 암튼 재밌는 기획이고 좋은 노래들이다. 정용화 팬될듯.ㅎㅎ
— 정민재 (@minjae_jung) January 23, 2016
Trans) Between the collaboration works by Jung Yonghwa x Sunwoo Jung-A, I prefer 'Hello' over 'Fireworks'. Though it's somewhat predictable, the melody and the vocals' breathing are much more sturdy. 'Fireworks' isn't bad but 'Hello' sticks to my ears more. Anyhow, it's a fun project and these are great songs. I think I might turn into Jung Yonghwa's fan hehe