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It's been 3 years since tvN's 'Problematic Men' started airing back in 2015. Since then, many guests appeared on the show and to honor the show's big day, they sent out some messages to send their congratulations. 

Some of the stars who sent their video messages include Roy Kim, Yu Seon Ho, Yang Se Hyung, Dennis Hong, Kim Jung Hoon, and much more.

In addition to this, one special person also sent his congratulations and wishes, BTS' RM. He was actually one of the original cast members in which he filmed from the very first episode to the 22nd, where he had to leave the program due to BTS' world tour schedule. 

As a former member of the show, he sent a special message, "Hello this is RM! It's already been 3 years since when hyungs and I solved our first problem together. Even now, it's such a meaningful show as I still hear of 'sexy brain' during interviews. I miss all those times when we solved problems together and I hope there is an opportunity in the future where we can do it again."