Recently on Sung Si Kyung's Youtube channel on an episode that aired on December 26 KST, TVXQ's Changmin made a special appearance, joining host Sung Si Kyung for an entertaining chat.

During the episode, Sung Si Kyung recounted a incident that shed light on TVXQ's remarkable popularity. He began by reminiscing, "I once saw Yunho on a variety show, and we happened to meet and chat when his phone battery was running low."

Continuing the story, he shared, "While we were in conversation, Yunho's phone started ringing incessantly. He kept checking it, and the calls just wouldn't stop. Eventually, his phone battery died, and he had to replace it with another one. I was amazed when I saw that he had four spare batteries in his bag."

Sung Si Kyung explained that the situation arose because Yunho's phone number had become known to fans. Yunho explained that even after changing his number, fans would somehow manage to find it and congratulate him on the switch, which shocked Sung Si Kyung at the time.

Despite the unexpected phone troubles, Yunho remained composed and resilient, saying, "It's okay; it's something I have to overcome."