LOONA has revealed new concept photos for four more members.

As seen previously, the group has begun to unveil teasers for their upcoming summer special mini album, 'Flip That.' The concept for this new album seems to be a beautiful garden where the members look like gorgeous princesses and queens. Most recently, the teasers featured profile shots of HaSeul, YeoJin, Vivi, and Kim Lip.

LOONA's new album will be released on June 20 at 6 PM KST.