"MONSTA X" to hold pop-up store "MONMUNGCHI X: WELCOME PARTY" to celebrate 9th debut anniversary... May 9th to 15th
"SBS Inkigayo"'s "youngest MC" "ZB1" Han Yu-jin & "IVE" Yi Seo & actor Moon Sung-Hyun to perform special MC stage for "Rum Pum Pum Pum"