On September 14, Kep1er's debut title song "WA DA DA" exceeded 100 million cumulative streams on Oricon. Immediately after its release in January, Kep1er quickly proved its hot popularity in Japan as "WA DA DA" ranked on various domestic charts.

With this, "WA DA DA" is now eligible for the platinum certification by the Recording Industry Association in Japan (RIAJ) for crossing over a hundred million streams. Additionally, Kep1er have become just the third K-Pop group to have a song surpassing the stream count after BTS and TWICE.

Last August, "WA DA DA" has also hit the 100 million stream count on Billboard Japan.

Meanwhile, Kep1er recently made their debut in Japan with the group's first Japanese single "Fly Up". The group is also currently gearing up for their upcoming comeback next month.