Girls' Generation will open up about their slumps and trainee days on 'Beatles Code 3D'!

As previously revealed in a preview, Taeyeon, Tiffany, Sunny, and Hyoyeon as well as Lim Chang Jung are the guests lined up for the upcoming broadcast.

Sunny surprised everyone by sharing she recently faced a slump, sharing, "It was very difficult. Around the time that I thought that I didn't know how I could laugh on broadcast, I received the offer to appear on 'Grandpas Over Flowers'... After thinking over it a lot, I decided to appear on it. Suddenly, it felt like I was on a vacation to play. It was the first time that I ever felt like that. As I had fun during filming, I was able to overcome my slump."

Hyoyeon will also share how she was recruited into SM Entertainment during the first generation idol days when H.O.T and S.E.S were active and the chronological order of who joined the agency.

Catch this episode later today at 11PM KST!