On this week's episode of 'Mask King', the identity of 'Bandabi' from last week was revealed which shocked the panel of judges.

SEE ALSO: [SPOILER] Who do you think is 'Bandabi' on 'Mask King'?

On this day, 'Bandabi' covered her senior group S.E.S's hit song "Just In Love". As soon as she started singing, the whole crowd and the panel were very impressed by her singing abilities but also her pure and clear voice color/tone. Her special voice complemented to the song itself very well and sounded as if it was her own song. During this time, many were still confused as to who was behind the mask and even suggested that it probably wasn't an idol because the singer did not dance much.

Of course, that's when she had to pull out her sexy dance.

복면가왕
레드벨벳_ 조이 pic.twitter.com/OmwzwPOKtb

— Red Velvet KHJ (@Red_Velvet_KHJ) July 30, 2017

In the end, the person behind the mask was, in fact, an idol; it was Joy from the widely popular group Red Velvet! During the interview session, she told the audience that she wanted to regain her confidence through the show, "We as a group are nearing our fourth year and I think we're at a point in our career where we think we know enough but at the same don't understand much either. I think it's a very confusing period which forces us to pay more attention to other people's perception." 

She started to get choked up and showed tears but continued, "Because of the perception, I started to become scared at one point. Before I started my career, I really enjoyed singing and thought I was good, but from one moment I would be hiding in the bathroom to sing and my confidence started to decline more." 

Check out her performances and interviews! Did you think it was Joy from Red Velvet?