Red Velvet - IRENE & SEULGI - Monster
Red Velvet - IRENE & SEULGI - 놀이 (Naughty)
Red Velvet - IRENE & SEULGI - Diamond
Red Velvet - IRENE & SEULGI - Feel Good
Red Velvet - IRENE & SEULGI - Jelly
Red Velvet - IRENE & SEULGI - Uncover (Sung by SEULGI) (Bonus Track)