The girls took to their official Twitter account to relay the good news to their fans, Fineapple, with two lovely photos, saying, "April's 1st concert tickets sold out in one minute. Fineapple~ Thank you. See you August 21. #OfcourseFineapple #Letsbetogetherforever."
They really seem surprised and glad, don't they?
SEE ALSO: [MV & Album Review] April – 'Eternity'