The MBC entertainment program 'Infinite Challenge' guest and singer Chae Yeon explained her tear drop selfie to the Infinite Challenge members.

On the most recent episode of the popular MBC entertainment program 'Infinite Challenge,' which aired on Oct. 10, 2015, the 'Infinite Challenge' members visited Chae Yeon's dance studio and questioned her common sense.

When Chae Yeon saw a picture of Nelsen Mandela, she answered he was Abraham Lincoln and made the Infinite Challenge members laugh.

Later, Infinite Challenge member Yoo Jae Suk pulled a crying selfie of Chae Yeon and asked her about it. She said, "I've heard so many questions about this photo!" and explained that she was feeling really sad and having difficult times when she posted the photo. 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.