During their interview session, Lee Suji and Yuna Kim expressed how significant The Ark was to them before officially disbanding. Yuna Kim said, "Every time we stepped on the stage, it gave us so much excitement and huge memories. When we first heard that our group was getting disbanded, I couldn't believe it at first." Lee Suji added how she felt when she heard the news, "I don't know...I just smiled while crying...it's such a problem that I'm overcome with emotions when talking about The Ark even now but that's just how important it was and is for me."

Yuna Kim took to the stage first and was already given a nickname of "Audition Addict" for appearing on numerous audition/survival programs such as 'Superstar K', 'Unpretty Rapstar', and now 'The Unit'. On this day, Yuna Kim performed "Blue Moon" by Hyorin. She even managed to cover Changmo's rap verse flawlessly that stole the hearts of the mentors and the audience.

Next, Lee Suji stepped onto the stage to and showed off her dance skills as Bobby Newberry's song "Flight From Paris" came on in the background. As she performed, she was met with loud cheers from the audience as well as praises from the mentors.

Are you happy to see these two again?

SEE ALSO: 'PRODUCE 48' Kim Cho Yeon "IVE Wonyoung was my rival, but now I am happy with my current situation"