Yuna was taught by CSJH's The Grace Dana unnie. She learned from participating in musicals. She is more confident in dancing and acting than singing, which is her weakest link.
Girls' Generation members introduce themselves in 2007 as they debut with user created content.
Yoona was first revealed through UCC on July 6, 2007 , and over the next 8 days , all the members were revealed in that order: Tiffany , Yuri , Hyoyeon , Sooyoung , Seohyun , Taeyeon , Jessica , and Sunny . On July 16, a group video was released through UCC, and immediately after, the Girls' Generation page was opened on the official SM Town website and an official profile was also posted.
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