1 Night 2 Days Cha Tae Hyun said singer Rain, who visited 1 Night 2 Days as the morning angel guest, should be introduced as angel's boyfriend, referring to the fact that Rain is dating actress Kim Tae Hee, and made everybody at the scene laugh.

On the winter break special episode "Northern Kyung Ki Do Tour" of "KBS 2TV Happy Sunday - 1 Night 2 Days" which aired on January 19, 2014, the 1 Night 2 Days members Kim Joo Hyuk, Kim Joon Ho, Cha Tae Hyun, Defconn, Kim Jong Min, and Jung Joon Young played a game for dinner, and got to bed. While in bed, the six 1 Night 2 Days members, Kim Joo Hyuk, Kim Joon Ho, Cha Tae Hyun, Defconn, Kim Jong Min, and Jung Joon Young, talked about the two morning angels who had visited them in the past, who were members of girl groups such as HyunA and Suzy, and they expected the third morning angel to be a member of a girl group again.

In the morning, however, it was found out that singer Rain visited the six 1 Night 2 Days members, Kim Joo Hyuk, Kim Joon Ho, Cha Tae Hyun, Defconn, Kim Jong Min, and Jung Joon Young, instead of a member of a girl group. The members were not excited at all, which made the audiences laugh.

Cha Tae Hyun, who is friends with Rain, said to Rain, "When you are invited to appear as the morning angel at this program, you should have said no!"

Nevertheless, Rain woke up the members and helped them work out early in the morning. But the members were not following Rain very well, and Rain finally said, "I do not think I fit in very well with 1 Night 2 Days," making the audiences laugh again.

Cha Tae Hyun then said again, "You must have seen that the previous morning angels were Suzy and HyunA," and Rain replied, "I am an angel at heart."

Cha Tae Hyun then said, "You should have introduced yourself as angel's boyfriend," referring to the fact that Rain is dating a beautiful actress Kim Tae Hee.