Joochan covers the reff part of the soundtrack of Another Miss Oh drama entitled, "If it is You" originally sung by Jung Seung Hwan on 3rd episode of their Reality Show "Ring It! Golden Child"
Reff Lyrics [ Eng ] :
"..If It was you, how would it be?
If these crazy days became yours?
If you break down as much as me, will you know?
All the pain that fills me to the point where my heart is about to explode.
How much i want you?
If i was you
I would just love me.. "