'Knowing Brothers' revealed next week's preview featuring EXO's Xiumin, AOA's Seolhyun, Cosmic Girls' Dayoung, Golden Child's Jangjun, and more.

In the preview, the 'Knowing Brothers' invite their celebrity friends, including Xiumin, Seolhyun, Dayoung, Jangjun, Dayoung, Ock Joo Hyun, and Jang Dong Min. The cast members then partner up with their friends, but some partners question who their actual "real" friends are.

Kang Ho Dong and Dayoung came under suspicion, but they explained, "We're like siblings." Lee Soo Geun then expressed, "You shouldn't say siblings when it comes to someone old enough to be your dad."

In the second part of the preview, the cast and guests compete to see which friendships are real, and 2AM make a surprise appearance. This episode of 'Knowing Brothers' is set to air on November 13 KST.