The meeting with PD Na Young-seok was arranged through a message sent directly by Choi Jung-hoon of the band Jannabi.

On the live broadcast of the channel '15 Night' on the 28th, Jannabi, celebrating their 12th anniversary since debut, appeared. This appearance was made possible after Choi Jung-hoon contacted PD Na Young-seok directly. During the broadcast, the two explained the specific process that led to their meeting.

PD Na Young-seok revealed that the trigger was a comment during the live broadcast saying, "Please invite Jannabi," to which he responded, "It would be great if they appeared." After this remark, Choi Jung-hoon sent a message directly, leading to the decision for their appearance. PD Na Young-seok said, "Today's meeting surprisingly started from a casual remark I made without any expectations." He added, "We naturally thought, 'Who would even care?' but I was very grateful that Jung-hoon reached out directly. I was quite surprised."

Choi Jung-hoon shared that he had some hesitation before sending the message. He said, "I sent the message, but I was worried it might seem like I was jumping at the chance too eagerly." He also explained, "We wondered whether this was something we should just let go or if we really needed to reach out, or if it would just be a burden. For us, this was a serious matter."

During the broadcast, the actual message sent by Choi Jung-hoon was also revealed. The message read, "This is Choi Jung-hoon of Jannabi. The fan cafe went crazy over the video where PD Na was mentioned. Please don't hesitate to call me anytime if you need me." Choi Jung-hoon shared that "Even just a single mention made us feel very happy" at that time.

Meanwhile, Jannabi debuted on April 28, 2014, with the digital single "Rocket." Since then, they have continued their activities by releasing various songs such as "Hot Summer Night is Gone, What's Left is Unsightly" and "For Hesitant Lovers." Vocalist Choi Jung-hoon acknowledged his relationship with actress Han Ji-min in 2024.