List of King of Mask Singer episodes (2021)

This is a list of episodes of the South Korean variety-music show King of Mask Singer in 2021. The show airs on MBC as part of their Sunday Night lineup. Due to the COVID-19 pandemic, the show would be recorded without any audience in the episodes, and the matches' results would be decided by the celebrity panelists. The names listed below are in performance order.


 * – Contestant is instantly eliminated by the live audience and judging panel
 * – After being eliminated, contestant performs a prepared song for the next round and takes off their mask during the instrumental break
 * – After being eliminated and revealing their identity, contestant has another special performance.
 * – Contestant advances to the next round.
 * – Contestant becomes the challenger.
 * – Mask King.

144th Generation Mask King (cont.)

 * Contestants: Elly (Weki Meki), Jeong Minseong (La Poem), Chan (Victon), Outsider, Nam Hyun-hee, Shin Hyun-woo, ,

Episode 288 was broadcast on January 3, 2021.

145th Generation Mask King

 * Contestants: Yoo Seung-beom,, , Jae-gyun Hwang, ₩uNo, Yubin, Lee Young-hyun (Big Mama), Suyun (Rocket Punch)


 * Episode 289

Episode 289 was broadcast on January 10, 2021. This marks the beginning of the Hundred-forty-fifth Generation.


 * Episode 290

Episode 290 was broadcast on January 17, 2021.

146th Generation Mask King

 * Contestants: Park Si-hwan, Go Young-yeol (Second Moon/RabidAnce), Jaejae,, , Son Ah-seop, Yves (Loona), Kim Ki-bum


 * Episode 291

Episode 291 was broadcast on January 24, 2021. This marks the beginning of the Hundred-forty-sixth Generation.


 * Episode 292

Episode 292 was broadcast on January 31, 2021.

147th Generation Mask King

 * Contestants: Han Hee-jun, Kim Na-young, Lee Eun-gyeol, Kim Shin-eui (Monni),, Ahn Sung-joon, Lee Joo-hyuk , Punch


 * Episode 293

Episode 293 was broadcast on February 7, 2021. This marks the beginning of the Hundred-forty-seventh Generation.


 * Episode 294

Episode 294 was broadcast on February 14, 2021.

148th Generation Mask King

 * Contestants:, Jiseon (Loveholics), Taeil (Block B), Shinsadong Tiger, Minnie ((G)I-dle), Nadeul , New (The Boyz),


 * Episode 295

Episode 295 was broadcast on February 21, 2021. This marks the beginning of the Hundred-forty-eighth Generation.


 * Episode 296

Episode 296 was broadcast on February 28, 2021.

149th Generation Mask King

 * Contestants: Kim Chae-won (Iz*One), Kwon Jin-ah, Kim Boa, , Park Sang-min, , Choi Jung-yoon, Kim Jun-ho


 * Episode 297

Episode 297 was broadcast on March 7, 2021. This marks the beginning of the Hundred-forty-ninth Generation.


 * Episode 298

Episode 298 was broadcast on March 14, 2021.

150th Generation Mask King

 * Contestants:, Do Sang-woo, , DJ Tukutz (Epik High), , , Hong Young-joo, Kim Hyun-jung


 * Episode 299

Episode 299 was broadcast on March 21, 2021. This marks the beginning of the Hundred-fiftieth Generation.


 * Episode 300

Episode 300 was broadcast on March 28, 2021.

151st Generation Mask King

 * Contestants:, Juvie Train , Go Yoo-jin (Flower), , , , , Lee Seung-yeon


 * Episode 301

Episode 301 was broadcast on April 4, 2021. This marks the beginning of the Hundred-fifty-first Generation.


 * Episode 302

Episode 302 was broadcast on April 11, 2021.

152nd Generation Mask King

 * Contestants:, Song Bong-joo , , Park Sung-joon (A.R.T), , , , Lee Joo-woo


 * Episode 303

Episode 303 was broadcast on April 18, 2021. This marks the beginning of the Hundred-fifty-second Generation.


 * Episode 304

Episode 304 was broadcast on April 25, 2021.

153rd Generation Mask King

 * Contestants: Kang Seung-hee (Wink), Kang Joo-hee (Wink), Gil Byung-min, Ryu Seung-min, Rocky (Astro), Yoon Hyun-sook , , Sohee (Elris)


 * Episode 305

Episode 305 was broadcast on May 2, 2021. This marks the beginning of the Hundred-fifty-third Generation.


 * Episode 306

Episode 306 was broadcast on May 9, 2021.

154th Generation Mask King

 * Contestants:, , Mo Tae-bum, Bae Jin-young (CIX), , Lee Young-ji, , Jeon In-hyuk


 * Episode 307

Episode 307 was broadcast on May 16, 2021. This marks the beginning of the Hundred-fifty-fourth Generation.


 * Episode 308

Episode 308 was broadcast on May 23, 2021.

155th Generation Mask King

 * Contestants:, Kim Sang-hyuk (Click-B), , , Kim Dong-han (WEi), , , Jang Yoon-jeong


 * Episode 309

Episode 309 was broadcast on May 30, 2021. This marks the beginning of the Hundred-fifty-fifth Generation.


 * Episode 310

Episode 310 was broadcast on June 6, 2021.

156th Generation Mask King

 * Contestants: Sole,, Monday (Weeekly), Nancy Lang, , , Park Min-hye (Big Mama), Choi Byung-chul


 * Episode 311

Episode 311 was broadcast on June 13, 2021. This marks the beginning of the Hundred-fifty-sixth Generation.


 * Episode 312

Episode 312 was broadcast on June 20, 2021.

157th Generation Mask King

 * Contestants: Choi Ye-na,, Lee Ji-hoon, Lee Hoon, , , Choi Jung-in,


 * Episode 313

Episode 313 was broadcast on June 27, 2021. This marks the beginning of the Hundred-fifty-seventh Generation.


 * Episode 314

Episode 314 was broadcast on July 4, 2021.

158th Generation Mask King

 * Contestants: Jeong Se-woon, pH-1,, , , , , Hyebin (Momoland)


 * Episode 315

Episode 315 was broadcast on July 11, 2021. This marks the beginning of the Hundred-fifty-eighth Generation.


 * Episode 316

Episode 316 was broadcast on July 18, 2021.

159th Generation Mask King

 * Contestants:, Kim Jae-yup, Lee Min-hyuk (BtoB), , , , Dahyun (Rocket Punch), Bae Doo-hoon (Forestella)


 * Episode 317

Episode 317 was broadcast on August 8, 2021. This marks the beginning of the Hundred-fifty-ninth Generation.


 * Episode 318

Episode 318 was broadcast on August 15, 2021.

160th Generation Mask King

 * Contestants: Seungmin (Golden Child), Jay B (Got7),, Sungmin (Super Junior), Im Sung-eun (Young Turks Club), Christina Confalonieri, , Park Joon-geum


 * Episode 319

Episode 319 was broadcast on August 22, 2021. This marks the beginning of the Hundred-sixtieth Generation.


 * Episode 320

Episode 320 was broadcast on August 29, 2021.

161st Generation Mask King

 * Contestants: Lim Kim,, Seo In-young, (Nine Muses), Kim Ji-hyun (Roo'ra), Wang Ji-hye, Lee Dae-hyung, Park Wan-kyu


 * Episode 321

Episode 321 was broadcast on September 5, 2021. This marks the beginning of the Hundred-sixty-first Generation.


 * Episode 322

Episode 322 was broadcast on September 12, 2021.

Chuseok Special: Duet Mask Kings

 * Contestants: Kim Min-seok (MeloMance) &, Kihyun (Monsta X) & Jeong Se-woon, & Hong Ji-hyun, Lee Min (As One) & Lisa, Kim Tae-gyun & Kim Tae-gyun (Cultwo),  & ,  & , Lee Ji-young (Big Mama) & Lee Seung-woo


 * Episode 323

Episode 323 was broadcast on September 19, 2021. Winner of this special episodes ("Sibling Rebellion") revealed their identities through a special performance on the beginning of episode 327.


 * Episode 324

Episode 324 was broadcast on September 26, 2021.


 * Episode 325

Episode 325 was broadcast on October 3, 2021.

162nd Generation Mask King

 * Contestants:, , Kim Jin-woong, Park Hyun-woo, Nada, Hwang Youn-joo, , Kim Yong-jun (SG Wannabe)


 * Episode 325

Episode 325 was broadcast on October 3, 2021. This marks the beginning of the Hundred-sixty-second Generation.


 * Episode 326

Episode 326 was broadcast on October 10, 2021.

163rd Generation Mask King

 * Contestants: N/A, Kim Joo-taek (Miraclass), Cho Gu-ham, Oh Sang-uk, Kim Young-ok,, , Carlos Galvan (Uptown)

6


 * Episode 327

Episode 327 was broadcast on October 17, 2021. This marks the beginning of the Hundred-sixty-third Generation.


 * Episode 328

Episode 328 was broadcast on October 24, 2021.

164th Generation Mask King

 * Contestants: Yukika, (5tion),, , Kim Sang-woo , , , Kim Jae-hwan


 * Episode 329

Episode 329 was broadcast on October 31, 2021. This marks the beginning of the Hundred-sixty-fourth Generation.


 * Episode 330

Episode 330 was broadcast on November 7, 2021.

165th Generation Mask King

 * Contestants: (Fiestar),, Kim Tae-sul, John Noh (RabidAnce), , , Kim Heung-soo, Chunja


 * Episode 331

Episode 331 was broadcast on November 14, 2021. This marks the beginning of the Hundred-sixty-fifth Generation.


 * Episode 332

Episode 332 was broadcast on November 21, 2021.

166th Generation Mask King

 * Contestants: An Yu-jin (Ive), Z-E (Turtles),, , Shin Ye-chan (Lucy), , Kwon Soon-woo, Rumble Fish


 * Episode 333

Episode 333 was broadcast on November 28, 2021. This marks the beginning of the Hundred-sixty-sixth Generation.


 * Episode 334

Episode 334 was broadcast on December 5, 2021.

167th Generation Mask King

 * Contestants:, , Bang Eun-hee, , Mirani, Ryuji , Lee Mu-jin, Choi Joon-suk


 * Episode 335

Episode 335 was broadcast on December 12, 2021. This marks the beginning of the Hundred-sixty-seventh Generation.


 * Episode 336

Episode 336 was broadcast on December 19, 2021.

168th Generation Mask King

 * Contestants: Thunder, Danny Koo, Kim Sung-kyung,, , Rhee Dae-eun, ,

Episode 337 was broadcast on December 26, 2021. This marks the beginning of the Hundred-sixty-eighth Generation.