On M.net "Beatles Code 2" that was aired on Tuesday, Sweet Sorrow, Kim Jongmin, and Kim Sungsoo was on the show, prooving the parellel theory.

Sweet Sorrow members all met at Yeonsei University and met at the school choir club.

MC Tak Jaehoon asked if it was true that Sweet Sorrow were the genius who got the full scholarship and the member Kim Youngwoo said that it's not true, and got embarrased.

MC Shindong asked if In Hojin got full score in language subject for the college scholastic ability test and he replied right away that it was for a regular examination test.

Also, Song Woojin explained that they got two academic warning and made the audience laugh.

Other than that, Kim Youngwoo dragged attention by telling the fact that he was the most accurate tutor.