The audition was open to applicants from March 2009 to April 2009, with a special show on Mnet following the audition process starting in May 2009.
There were 2,500 applicants in total, and the sole winner of the audition was announced on June 21, 2009 as Jang Da Yeon.
- The audition is a joint project by UP-FRONT AGENCY and M.Net Entertainment.
- There is no age limit for the applicants.
- They'll select 10 finalists, out of which only one will become an official Hello! Project trainee. She'll receive training in Japan, and her training will be "Japanese style", taking all the steps that a Japanese entertainer would take for debut.
On the last day of Hello! Project 2009 Winter Kettei! Hello☆Pro Award '09 ~Elder Club Sotsugyou Kinen Special~, Ogawa Makoto confirmed the rumors of the audition. On March 9, 2009 Tsunku, Shimizu Saki of Berryz Koubou and Yajima Maimi of ℃-ute visited South Korea to formally announce the audition, they held a press conference and Shimizu and Yajima also held a fan signing event.
On April 27, 2009 Takahashi Ai, Niigaki Risa and Tanaka Reina visited South Korea for the audition show taping. On April 30, 2009 Umeda Erika and Yajima Maimi of ℃-ute also visited South Korea for an audition show taping (the 2nd episode). Korean boy group 2PM members Chansung and Junho were the show MCs.
Separately, the Korean show J-POP WAVE aired two special programs with the mentioned Hello! Project members, where they talked about the auditions and K-pop (The May 2, 2009 program featured Takahashi, Niigaki and Reina, and the May 9, 2009 program featured Umeda and Yajima).
The special Mnet show documenting the audition ran from May 22, 2009 to July 10, 2009 with a total of 8 episodes. The show's description indicated that the audition was seeking "the second Morning Musume" or "the second BoA".
Broadcasted on May 22, 2009. The three judges are gathered, E-Tribe, Jung Sungwook, Soulflower. The finalists perform in front of them and the judges gave their feedback. They were severely disappointed and said that none of the girls had what it takes to be a singer in Japan. Then the girls get split in two teams (A and B). Then the scene shifts, and it shows that both teams have to state their bads about each other. The girls aren't serious enough and the two MCs (Chansung and Junho) get mad at them.
Broadcasted on May 29, 2009. Team A and B get into a recording studio and get feedback from Soulflower. According to the judges, Team A is less skilled than Team B. Both teams stay in the recording studio. ℃-ute's Umeda Erika and Yajima Maimi pop in to observe and watch Team B. Then there's a performance day. Each team can only perform once. Tsunku says through a VTR that the keyword when performing is "smiling face" in Japan. The girls perform ℃-ute's Sakura Chirari and the judges gave their feedback. They said that although Team B's level has gone up (regarding singing and dancing), it was Team A that surprised them (was really energetic, worked well as a team). Then the teams are switched up: New Team A: So YuMi (leader), Oh MiNa, Jang Mikyung, Kim ChoHye. New Team B: Yang YunSoo (leader), Lee SuJin, Seo YeRin, Jang DaHyun, the two new leaders were chosen because they stood out the most to the judges.
On June 21, 2009 the finalists, Berryz Koubou, Tsunku and 2PM members Chansung and Junho gathered in the auditorium of Seoul's Yonsei University, where Berryz Koubou MINI LIVE in Korea took place, the finalists delivered a performance of "3, 2, 1 BREAKIN' OUT!" and Jang Da Yeon (14) was announced as the winner of the audition. According to Tsunku, Jang was chosen because she had the most star quality among the finalists.
Jang Da Yeon was formally introduced at the Hello! Project 2009 SUMMER Kakumei Gannen ~Hello! Champloo~ concert on August 8, 2009. She had no further activities until January 2011 when she performed with the Hello Pro Kenshuusei as a backdancer at the Hello! Project 2011 WINTER ~Kangei Shinsen Matsuri~.
She became inactive following the S/mileage Shin Member Boshuu! audition in the summer of 2011.
- Three years prior to the audition, in 2006, Hello! Project briefly "hosted" an "exchange student" from South Korea, actress Shim Min (심민).
- Participant So Yu-mi (소유미) would later debut as a member of Kpop groups VNT in 2010, and Kiss&Cry in 2013. She debuted as a solo trot singer in 2015.