In May, "K-POP Comeback War" was Hot Topic in South Korea. .
● May 3: Sung Si Kyung
● 4th: ASTRO, SNSD (Girls' Generation) Tae Yeon
● 6th: IUxSUGA (BTS)
● 7th: Natty
● 11th: MonstaX, NU'EST, DAY6
● 18th: TXT
● 19th: NCT 127
● 25th: X1 former member Kim WooSeok
● Unknown: WannaOne former member Park Ji Hoon, Ha Seong Woon, EXO Baekhyun.