On the 13th November, Rapper Zico mentioned Chungha in an interview about the artist he wants to collaborate with:

"Personally, I think it would be interesting if I made a song with Chungha" 

The two artists already had interaction in 2017 at the program "Show Me The Money 6", where Chungha performed "LOBBY RYNO" with other artists, and Zico's funny reaction made Netizens laugh. 

Source: naver.me/5ts3VF44