According to Dramabeans.com, Yu-na Kim recently showcased her little known singing talents on the Korean show "The Star Show" the other day. You can find a clip on the web site if you would like to hear. Here is the site's review:
Granted, it’s not exactly a perfect performance, and she chose a difficult song to perform live — but dude, I’m not going to rip on the singing skills of anyone who can propel themselves more than their own body length through the air while spinning multiple times and landing upright on the edge of a blade. Mad respect to skaters (figure and otherwise).
I know nothing about this show. I wonder if it's the equivalent of Mirai Nagasu singing on American Idol? I don't know.