Lee Hyori and Lee Sang Soon practicing was revealed.

A staff member posted on his Twitter yesterday, "They're playing well" along with a video clip. In the video clip, Lee Hyori is practicing 'Miss Korea' with her boyfriend Lee Sang Soon.

In the video, Lee Hyori is sitting down in a chair and is singing her new song 'Miss Korea' to Lee Sang Soon's guitar playing. The practice is serious but calming at the same time.

Lee Hyori's 'Miss Korea' rose to rank 1 as soon as it was released.

Photo Credit: Twitter