On April 12th, 2021, Brave Girls did a live interview with KBS World Radio Arabic and it was streamed on YouTube. View the video below. It starts at about 4:07 and there are currently no subs available.
They filmed the interview while they were at the KBS studios to film Immortal Songs 2, so the outfits they are wearing may be a small spoiler for the upcoming show!
They also performed Rollin’!