Among K-pop girl groups, MAMAMOO's fans seem to be among the most enthusiastic. 

MAMAMOO's official fan club recently reached 30,000 members since it was established a year and a half ago, setting a new record for the fastest a Korean girl group has reached that number. 

MAMAMOO's latest hit track "Um Oh Ah Yeh" played a critical role in expanding the group's fan base. During their "Um Oh Ah Yeh" activities, the official number of the fan club increased by 19,000 and manifested MAMAMOO's increasing popularity.

Tickets to MAMAMOO's first solo fan meeting on August 23 also sold out within a minute of release and displayed the group's increasing power. When fans requested for more tickets, MAMAMOO responses by deciding to hold another fan meeting on the same day.

MAMAMOO's solo fan meeting '1st MOO Party' will take place at the Olympic Park in Seoul at 5 PM KST and 8 PM KST of August 23.