Seungyoon a.k.a. 6-time King of Masked Singer Joo Yoon Bal was invited back on the show as a celebrity panelist for Episodes 337-338 which were broadcast on December 26, 2021 & January 2, 2022.
Opening the year-end episode, Seungyoon delighted ICs and the show’s fans alike by singing once again Cho yong Pil’s “Bounce”, the stage which brought him his 4th win on the show.
Seungyoon also danced to a medley of WINNER’s songs alongside the male masked singer “Rudolph the Red-nosed Reindeer”, who he initially guessed to be an idol. “Rudolph the Red-nosed Reindeer” was later revealed to be 2NE1’s Dara’s younger brother, formerly MBLAQ member Thunder! Watch them in dancing cutely to the medley of “Millions‘ , ‘Really Really’, and ‘Hold.