This is Jessica Jung of the wildly popular (??) South Korean ensemble Girls' Generation. It's a nine member group with at least one "subunit." I did a lot of research for you guys.
Anyway, here is one member doing what can only generously be described as throwing the ceremonial first pitch before the LG vs. Samsung game in the Korean Baseball Organization. It's a shame Toronto scooped up Vlad Guerrero earlier this week, he might have made things a little less awkward as the ceremonial first batter.