Behind-the-scenes photos of Young K from Amazing Saturday have been uploaded to DAY6's Instagram.

Wow, what's going on with Young K's visuals?

They look so fresh and youthful.

Aren't they teenagers?

He looks like a teen star and is super handsome.

Young K is so, so busy these days.

You have no idea how happy I am to be a regular on Saturday.

As a fan, I felt proud.

He/She is good at his/her main job, too.

Even though his main job comes first, I feel so proud seeing Young K shine in variety shows as well.

Young K is so cool for showing off his talents in so many ways.

I hope you continue to become an even more successful singer.

As a fan, I'm going to cheer hard for you too.

Let's all have fun fangirling together, everyone!!!

DAY6 is the best, Young K is the best.