As the MBC entertainment program 'Infinite Challenge' member Yoo Jae Suk worked on his birthday.

On an episode of the popular MBC entertainment program 'Infinite Challenge,' which aired on Saturday, August 22, 2015, the MBC entertainment program 'Infinite Challenge' summer music festival participants and k-pop stars finally performed on stage in front of thousands of k-pop and Infinite Challenge fans.

While hosting the music festival concert, Yoo Jae Suk said to the audience that "tomorrow is my birthday." The audience started to sing happy birthday for him, and Yoo Jae Suk thanked the fans. When one fan asked, "What are you doing on your birthday?" Yoo Jae Suk replied, "I will be working," and made them laugh. In related news, on the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' the 'Infinite Challenge' members delivered Korean food to Koreans living all over the world, including the United States, Chile, Japan and Kenya. The MBC entertainment program 'Infinite Challenge' is one of the popular, long lasting entertainment programs in Korea. It features the Infinite Challenge members Ha Ha, Park Myung Soo, Yoo Jae Suk, Jung Joon Ha, and Jung Hyung Don.