Actress Lee Sung Kyung showed off her sexiness through the chair dance of Son Dam Bi's song "Crazy" on "Running Man," catching much attention.

On SBS entertainment program "Running Man" aired on December 7, Lee Sung Kyung appeared as one of the guests.

For one of the games to escape the igloo, the couples on the show had to dance to songs. Lee Sung Kyung danced to Son Dam Bi's "Crazy," catching all the attention of everyone at the filming set. She perfectly reproduced the chair dance.

Lee Sung Kyung is part of YG Entertainment and has been working mostly as a model. She appeared on SBS "It's Okay, It's Love," rising to popularity.