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Yonghwa expressed excitement to perform with his role models, YB, sharing, "As I watched YB sunbaenims' concerts during my school days, I had a dream to be an artist like them. I am really happy to stand on the same stage as my sunbaenims."

YB and Bobby Kim will kick off their collaboration concert in Daejeon on December 20 followed by Daegu on the 24th, Busan on the 25th, and Kyung Hee University's Grand Peace Palace, Seoul on the 27th-28th. Kangnam and Yonghwa will be appearing at the 27th and 28th concerts, respectively.