Last week, we reported that actress Park Han Byul, soccer player Ki Sung Yeung, and idol groups TVXQ and SECRET were filming a CF for an event sponsored by famous athletic brand, Nike. The CF's are for a marathon titled "Nike Women's Race Seoul" and managed to gather some of Korea's top stars. The first of these CF's featuring the pretty ladies of SECRET and actress Park Han Byul have been revealed, check it out below. Tip: Trixia