Im Yoon-ah, popularly known as YoonA, is a renowned South Korean actress and a member of the globally acclaimed girl group Girls’ Generation, or SNSD. In the South Korean entertainment industry, YoonA emerges as a star and an icon.

While YoonA's talents shone on stage and screen, it was her prowess in commercial endorsements that truly set her apart. Even before her official Girls' Generation debut, she appeared in CFs. From the outset of her career, she demonstrated a natural ability to embody diverse brand images, seamlessly transitioning from cute and bubbly to sophisticated and glamorous as the occasion demanded. Her undeniable influence in the world of commercial endorsements earned her the well-deserved title of "CF Queen."

YoonA has done numerous endorsements as a member of Girls’ Generation, and her individual CF count is nearly 40. Some of the notable brands she endorsed are SK Telecom, Cartier Jewelry, Michael Kors, Qeelin, S-Oil, Everland’s Caribbean Bay, Lee Jeans, Pandora, Ragnarok Mobile, Estée Lauder, etc.

YoonA's influence transcends the border of South Korea, and she was appointed as a global ambassador for reputable brands like Miu Miu, Korea Tourism Organization, CROCS, EIDER, INNISFREE, etc.

Despite the ever-changing landscape of the entertainment industry, YoonA has remained a consistent presence in the advertising world, maintaining her relevance and desirability year after year.