Namjin expressed his willingness to collaborate with Na Hoon-a and Cho Yong-pil. On the March 21 broadcast of MBN's "Kim Juha's Day and Night," Namjin and Jo Hang-jo appeared as guests. Namjin shared his desire to perform on stage with Na Hoon-a and Cho Yong-pil. He said, "If there is any regret as I get older, it is that I want to leave a stage where the three of us—Yong-pil, Hoon-a, and I—perform together." He added, "The three of us defined an era, so it would be a great record in the music industry."

Namjin also mentioned his past collaboration with Na Hoon-a. He revealed, "In 1987, I sang a duet with Na Hoon-a on a special stage." Namjin expressed his affection for Na Hoon-a by saying, "It was the first and last duet. We enjoyed it." Additionally, he praised Na Hoon-a for performing well on stage despite being his junior.

During the broadcast, Kim Juha asked Namjin about his relationship with Na Hoon-a. When asked, "Have you ever been hit by Na Hoon-a?" Namjin showed a surprised expression. He replied, "That could never happen. How could a junior in the entertainment industry discipline a senior? That would be a big problem." Kim Juha presented a video as evidence, showing a scene where Na Hoon-a throws an angry punch at Namjin. Namjin explained that the film was made about 50 years ago and added, "We appeared together in four films."

Jo Hang-jo mentioned their popularity, asking, "How popular must you two have been to have appeared in four films together each?" Namjin was then asked about Na Hoon-a's retirement. Namjin responded, "Personally, I don't think so," suggesting that Na Hoon-a could return to the stage anytime. He added, "If you don't feel like doing it, you can take a break, and if you want to do it again, you will come back."

Namjin emphasized, "People can take a break if they want to rest, if they are sick, or if they don't want to do it." He stressed that a singer's life is not enjoyable without singing. He said, "I think it would be difficult for me to live without singing."

The broadcast also included stories about the relationship between Namjin and Jo Hang-jo, along with reflections on their musical journeys. Namjin revealed that he and Jo Hang-jo serve as judges on the program "Unknown Legend." The two highly praised each other's musical talents and emphasized the importance of performing together.

Namjin explained their partnership by saying, "The two of us appear as judges on the program 'Unknown Legend.'" He shared that through the program, they encourage each other's musical growth and development. During the broadcast, Kim Juha asked questions connecting their past and present, leading to discussions about their musical legacy.

Namjin and Jo Hang-jo expressed gratitude to their fans and announced their intention to continue their activities. They pledged to communicate with their fans through music and never forget their love and support. Namjin said, "Since there are many fans, I think I will always come out."

The broadcast highlighted the musical journeys of Namjin and Jo Hang-jo, covering their past, present, and future. It provided an opportunity to revisit their musical legacy through their sincere conversation.