Im Yoon Ah, commonly stylized as Yoona, is a popular South Korean pop singer, dancer, actress, model and spokesmodel. She is a member of the Korean girl group Girls' Generation and is known as the center-girl, lead dancer and sub-vocalist of the group. Yoona made her debut as a singer along with Girls' Generation on August 5, 2007. She made her debut as an actress before her debut in Girls Generation in the 2007 Korean drama, 9 Ends, 2 Outs. Having appeared in CFs even before her Girls' Generation debut, the success of Yoona's music and acting careers have led her to individually endorsing almost 40 brands internationally, notably long-time collaborator Innisfree, including ten in 2019 alone. CNN credited her as "one of the household names in the Asia-Pacific region" which has helped Korean beauty brands become popular in China. She went on to major in theater studies and graduated from Dongguk University in February 2015, receiving a lifetime achievement award at the graduation ceremony.

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