AKB48 sister group,�SDN48, has been making news for their simultaneous debut in Korea and Japan.� To help promote their major label debut single, "GAGAGA," they held a special launch event yesterday on November 28th at the Yomiuri Land Open Theater in Tokyo.

For the event, the selected 12 members for the debut track of "GAGAGA" performed the new single.� They were joined by Undergirls A singing "Eros no Trigger" and Undergirls B doing "Sado he Wataru."� These three sets of idols all added up to 36 total members, and they all came together to perform "Kodokuna Runner" for a four song performance.

Member Oohori Megumi commented, "This was our first event with all 36 of us, and I was really happy. �The weather was great, it was the best."� Noro Kayo said, "This is our first single and I'm so happy.� This is where we had our amateur stages, and now we have our first pro stage here.� It's an intense feeling."

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Source & Photos : natalie