IU bows 90 degrees during a live broadcast as a senior appears… the secret to its 18-year run (A Perfect Day)

Singer and actor IU drew attention with her exceptional courtesy.

On April 8, on MBC FM4U's 'A Perfect Day with Lee Sang-soon' (hereinafter 'A Perfect Day'), IU, the lead of MBC's new drama '21st Century Prince's Wife,' appeared as a guest.

While the music was playing, singer Bae Chul-soo was seen visiting the radio booth and warmly greeting IU. The two exchanged a handshake and spoke briefly. As Bae Chul-soo was about to leave, IU bowed deeply at a 90-degree angle to greet him politely.

Bae Chul-soo hosts 'Bae Chul-soo's Music Camp' every day at 6 p.m. on MBC FM4U.

IU is set to premiere '21st Century Prince's Wife' on the 10th. '21st Century Prince's Wife' is a drama set in a 21st-century constitutional monarchy in the Republic of Korea, telling the romance of a woman who has everything as a conglomerate heiress but is frustrated because her social status is commoner, and a man who is the king's son but cannot have anything and is sad as he breaks fate and overcomes class barriers.

On this day, when asked, "Isn't it hard to work as both a singer and an actor?" IU said, "There are times when it's physically hard, but not doing this is much harder. Life isn't fun." IU also said, "There are so many little joys that come from the process; even if I look as if I'm frowning, my heart is happy."