CNBLUE appeared on KBS 2TV's 'Yoo Hee Yeol's Sketchbook' on September 18, saying some interesting things in the interview and putting on some awesome performances.

The boys revealed, "Our nerves whenever we came onto 'Sketchbook' in our early debut phase seemed to have taken away our energy, but we get more comfortable the more we come on."

The MC stated to Yonghwa, "There's a strange rumor that you've caught an obsession with exposure?" and he replied, "For six years, I heard that my shoulders were small, so I thought that there needed to be a change.  I started exercising with the thought that I would show them.  I was not able to exercise well today, so I just unbuttoned a few more buttons today."

SEE ALSO: Former MLB Pitcher Park Chan Ho's home destroyed in LA wildfire, his family evacuated to hotel

They also talked about how each member was busy acting, doing variety shows, hosting shows, and more.  Jonghyun said, "For two to three years after debut, Yongwa was mostly the one with a lot of promotions, so he was having a hard time.  So we all decided that we would now do it together."  Minhyuk said it was a chance for them to get CNBLUE's name out there through personal promotions.

They additionally talked about being an idol group for six years, explaining what had changed: "If we are with idols [who are active] these days, they seem uncomfortable. There's no one for us to mingle with."

CNBLUE also touched upon the topic of judgment from the public with Yonghwa saying that he'd be asked if he wrote songs and specifying that he actually wrote 28 this time. Jungshin relayed his sadness that they were deemed a group that 'hand-synced,' meaning did not actually play their instruments live.  They even get called a "bluetooth band" because the lines had not been connected.

You can check out their actual skills live in the performances below!