Rainbow's leader, Kim Jaekyung, was recently picked up by OB Beer's�'Cass Fresh' brand to be their endorsement model.�Accompanied by the brand's main model, actor Jo In Sung, the two got together last June at a studio in Busan and Seoul to shoot their CF and promotional photos. The advertising company explained the reason why they selected Jaekyung as their model, "We casted Kim Jae Kyung because she has a fresh and colorful image that suits the product well". It's been reported that Jaekyung strived to promote the product by utilizing her bright and cheerful image. In other news, Jaekyung has wrapped up Rainbow's 'Sweet Dream' album promotions and is preparing for their Japan advancement this coming September. Source & Photo: X Sports New via�Naver