Wanna One to reunited at 2021 MAMA after 3 years (Image via Twitter)Fans of Wanna One are celebrating the temporary group's momentous reunion at this year's MAMA show.The group, which disbanded in 2019, ran for about two years until all of the members' contracts ended. However, the project group, meant to be temporary, left a huge mark on the K-pop industry.Wanna One to perform at 2021 MAMA without Lai Kuan LinWanna One, managed by both Swing Entertainment and CJ E&M, has officially been scheduled to reunite at this year's MAMA show.While details of the group's setlist are unknown, fans are regardless celebrating the monumental return of the much-loved K-pop boy group. The performance will take place on December 11, 2021, the day of the award show. View this post on Instagram Instagram PostUnfortunately, Lai Kuan Lin will not be attending the reunion. He was a trainee under Cube Entertainment until he filed and won a lawsuit against the company. In June 2021, the verdict came in and he was able to terminate his contract.The group's line-up came to fruition from season two of Mnet's most-popular idol-survival show, Produce 101. The members consisted of idol trainees and people who had already debuted as an idol, including a member of NU'EST and Hotshot. View this post on Instagram Instagram PostWanna One officially debuted on August 7, 2017, and officially disbanded on December 31, 2018. However, the lot reunited for a final concert in January 2019.The K-pop boy group was extremely popular during their active years, comparable to I.O.I, the season one winners of Produce 101. They scored 16 brand advertisements during their debut year, with many of the members appearing on several popular TV shows. View this post on Instagram Instagram PostIn 2017, the group won Best K-pop Artist of 2017 in a Gallup Korea survey and was placed second in the 30 "Power People" survey conducted by news agency Ilgan Sports.Fans reacted to the group's confirmed appearance with a variety of emotions.💛 메이 ia bec of acads@everytherepjhMNET really said: Wanna One we need you hahahayoutube.com/watch?v=AIa5Bw…10:32 PM · Nov 3, 2021575141MNET really said: Wanna One we need you hahahayoutube.com/watch?v=AIa5Bw… https://t.co/GkRghYn2uS𝟒:𝐃@haeyaaskyWanna One : disb*nded also Wanna One in 2021 :07:07 AM · Nov 6, 202125981007Wanna One : disb*nded also Wanna One in 2021 : https://t.co/PGhSLpliNk:/@HyunsutkWanna One ExceptReunion!!! Lai Guanlin.06:32 AM · Nov 15, 202154801809Wanna One ExceptReunion!!! Lai Guanlin. https://t.co/i6yYA2XBjbam@amwoojiniew1 members said it’s not wanna one if not full members ☹️🥺06:08 AM · Nov 15, 20212109606w1 members said it’s not wanna one if not full members ☹️🥺ℓaℓa is back // WANNA ONE IS COMING@likeonelineto all people throwing hate on wanna one being in mama 2021:08:49 AM · Nov 15, 20211032410to all people throwing hate on wanna one being in mama 2021: https://t.co/1VwswuzO3xc ♡ w1 reunion@ventimaknae“wanna one reunion” wannables:07:27 AM · Nov 15, 20211“wanna one reunion” wannables: https://t.co/KNuqX4TcES훈🍒@danjihoon_i just love how wannables resurrect from the grave after receiving news about w1 reunion08:10 AM · Nov 15, 2021459159i just love how wannables resurrect from the grave after receiving news about w1 reunionWith Wanna One's confirmation, many wonder which other artists will be performing at MAMA this year. Speculation and other information regarding the line-up can be found here.Meanwhile, nominees for this year's award show have been announced. The voting period has already started, with fans organizing "mass-vote" parties for their desired nominees. Several fans felt that other artists were robbed of nominations, such as EXO's Kai and ATEEZ.