The girls originally held their showcase in Tokyo back in August, but because so many more Japanese fans had requested to see them, they decided to hold another showcase on September 13, this time in Osaka with 4,000 fans at Namba Hatch Concert Hall.

SEE ALSO: Korean netizens react to Minhwan saying he didn't go to motels for prostitution but because he wanted to be alone

Their label said, "For their Tokyo showcase, over 50,000 fans requested tickets for a venue that could only hold 2,000. The fans who couldn't attend the showcase kept requesting another performance, so we held another one in Osaka."

The girls sang "Mr. Chu", "NoNoNo", and "Hush" among other songs. A Pink said, "We're so thankful and happy that so many fans came to our Osaka one after our Tokyo one. Please watch over how A Pink grows, and please support us."

The girls will be releasing their Japanese debut single "NoNoNo" on October 22.