'Dad! Where Are You Going?'s most popular dad, Yoon Min Soo, will show support as the producer and mentor of 4men by performing at their upcoming concert series, '2013 4men Concert: I'll Let You Listen'.

The group will be kicking off their concert series at the Yonsei 100th Memorial Hall in Seoul on May 17th-19th, Daejeon on May 25th-26th, Busan on June 1st, and finally in Daegu on the 8th.

Yoon Min Soo will also collaborate with 4men on stage as well as sing his group Vibe's new single, "I Want to Meet You At Least Once."

4men's reps stated, "Even in the middle of Yoon Min Soo's new album release and busy filming schedule for popular TV show, 'Dad! Where Are You Going?', Yoon Min Soo has decided to feature as a guest on stage for 4men's concert. It will be a charming and beautiful performance."

4men will step out of their hiatus with new single "Propose Song" from their upcoming album 'Thank You' on the 8th as well, so stay tuned!