On 'Mask King' this week, one particular singer with the mask of 'Okidoki' caught the attention with his sweet voice and great dancing skills. 

In the first round, two singers emerged to singer J and HowL's "Perhaps Love". As soon as they started singing, the panel gravitated towards their voices as the sweet voices of both singers fit extremely well with the song itself. But when the match came to an end, it was revealed that 'Okidoki' wasn't able to grab the win, and his competitor 'Princess' moved onto the next round.

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'Okidoki' immediately unmasked himself afterward to reveal the true identity was none other than the leader of MONSTA X's Shownu. He seemed very relaxed, and comfortably sang J.Y. Park's "You're the one" while even showing off some dance moves.

Check out the clips above and below.