just a once. 

.Twice/Tzuyu, Mina and Nayeon
.Red Velvet/Joy and Seulgi
.BTS/Jin and Jhope
.EXO/Suho
.Blackpink/Jisoo
.SNSD/Hyoyeon and Yoona
.Itzy/Lia and Chaeryeong 
.BtoB/Changsub
.CLC/Sorn