Kim Young-chul, is a South Korean comedian and singer.

Knowing Bros, also known as Men on a Mission or Ask Us Anything, is a South Korean television entertainment program produced by SM C&C that premiered on December 5, 2015, and currently airs on Saturdays at JTBC. Although the show has taken on different formats in some episodes, the program features a high school classroom setting with the fixed cast - the titular "brothers" - acting as same-aged students. Guests arrive posing as visiting students from another school and are interviewed by the cast in a talk show segment; the program's second half usually features a variety segment, with the cast and guests taking of activities such as games, talent show, or improvisational acting.