The new record is due out next month
As part of their appearance at the BNF Festival in Seoul
"Multiple plays in a day... did not count toward the score"
Ahead of the reality series’ final episode next week
Hyolyn, LOONA and Brave Girls are set to perform next week
The one-day event, billed as "the biggest outdoor K-pop festival in Europe ever", will take place in July
The show's mid-term rankings were also announced
Contestants were mixed into different units for a vocal showcase
The trio are now the first-ever K-pop girl group to feature on the series
Rankings for Round 2 were also unveiled at the end of the broadcast