As model Jang Yoon Joo recently starred on the SBS talk show 'Healing Camp' and talked about her recent marriage and work, fans revisited the times when model Jang Yoon Joo sang in front of the MBC entertainment program 'Infinite Challenge' members on the program. On an old episode of the MBC entertainment program 'Infinite Challenge,' model Jang Yoon Joo sang behind the stage with the curtains draped. The MBC entertainment program 'Infinite Challenge' members were curious who she would be, because she was such a talented singer. However, when model Jang Yoon Joo appeared, the MBC entertainment program 'Infinite Challenge' members jokingly shouted, "It's female Kim Bum Soo!" and made her laugh. In related news, on the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' the members interviewed and picked seven candidates for the 'Idiots' mission, such as Chae Yeon, Gan Mi Yeon, Solbi, Eun Ji Won, Hong Jin Kyung, Shim Hyung Tak and Kim Jong Min. 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.