This girl is everywhere in Korea--the billboards, on TV, on the streets as a cardboard cutout, bus stations, blown up posters...you name it, she'll probably be there, too. She's just about ubiquitous as oxygen. You know who I'm talking about: it's Seolhyun. 

Seolhyun is currently the face of numerous brands and products, including G-Market, SK Telecom, SPAO, ellesse, and even the general election campaign!  

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According to her agency, brands that Seolhyun is either currently in contract or finished with total up to 12, and, including the ad gigs snagged by AOA as a group, she is active for a whopping 22 brands. 

Insiders in the advertising industry in Korea conjecture that for each advertisement deal, Seolhyun contracts for up to a year and earns over 500 million KRW (~$434,105 USD). That means that with her 12 solo ad deals alone, she earned around 6 billion KRW (~$5.21 million USD) so far!