The Hallyu Wave is spreading to all corners of the world and K-pop is one of the biggest reasons behind it. Although 2021 was extremely difficult due to the pandemic, K-pop fans still enjoyed the year because of major solo comebacks, outstanding performances, and other legendary K-pop moments.For many, 2021 has been a difficult year with the pandemic and casualties. Fortunately for K-pop fans, the long year has become bearable with various comforting songs, hilarious variety shows, and exciting MV's.Many other K-pop moments of 2021 made an impact and turned out to be the best moments of the year.Here's the list drafted by us about the top 5 legendary K-pop moments of 2021.Top 5 K-pop moments of 2021 loved by all K-pop fans1) Butter and Permission To Dance by BTSBTS Charts & Translations⁷@charts_kBTS - "Permission to Dance" performed at the United Nations General Assembly | SDGs | Official Videoyoutu.be/9SmQOZWNyWE176567159BTS - "Permission to Dance" performed at the United Nations General Assembly | SDGs | Official Videoyoutu.be/9SmQOZWNyWE https://t.co/SYQL4YGS7yPop sensation BTS dropped their hit English singles Butter and Permission To Dance in 2021. While Butter was a summer bop, Permission To Dance brought joy and positivity among listeners globally.Both the songs enjoyed commercial and critical success, with Butter bringing BTS their second Grammy nomination. On top of that, the K-pop group attended the United Nations General Assembly as ambassadors for Youth and Culture and performed Permission To Dance for the attendees. It definitely has to be one of the best K-pop moments of 2021.2) The rebirth of Brave Girls on chartsKpop Girls Charts@kpopggsuperior"Rollin`" by #BraveGirls becomes the Girl Group song with the longest Perfect All-Kill in history The song has achieved 131 hours of Perfect All-Kill, surpassing previous record by #RefundSisters' "DON'T TOUCH ME" with 130 hours!34991033"Rollin`" by #BraveGirls becomes the Girl Group song with the longest Perfect All-Kill in history 👏🎉🔥The song has achieved 131 hours of Perfect All-Kill, surpassing previous record by #RefundSisters' "DON'T TOUCH ME" with 130 hours! https://t.co/Cwfus1GofFThe Brave Girls hit their second innings and received mainstream breakthrough success with their 2017 song Rollin. The girl group was on the verge of disbandment. However, when a compilation of Rollin started spreading like fire across all military bases in the country, the song became an instant hit.The soldiers shared that the track "got them through" the hard times of their lives. In 2021, the song became a sleeper success, bringing Brave Girls back to the charts.3) GOT7's reassurance to fans with EncoreGwenD. ☾🔗🌴💚@GwenD_24Warner Music promoting GOT7 globally vs GOT7 (almost zero) promotion under **** Stream Encore! @WarnerMusicPH @warnermusic @WarnerMusicSG @warnermusickorea@warnermusicth #GOT7 #GOT7_ENCORE #got7_앙코르 #GOT7IsBack_ENCORE #GOT7FOREVER #GOT7ThankYouForEncore2Warner Music promoting GOT7 globally vs GOT7 (almost zero) promotion under **** 😒Stream Encore! @WarnerMusicPH @warnermusic @WarnerMusicSG @warnermusickorea@warnermusicth #GOT7 #GOT7_ENCORE #got7_앙코르 #GOT7IsBack_ENCORE #GOT7FOREVER #GOT7ThankYouForEncore https://t.co/1X5qO1qpxE2021 marked the end of a journey when all GOT7 members bid farewell to JYP Entertainment upon the end of their contracts. This created havoc among fans, leading them to believe that GOT7 might disband too.However, the Just Right singers assured AGHASE (fandom) by releasing a thoughtful song, Encore. In fact, after a year of waiting, fans will finally see GOT7 on stage as the group is all set to make a comeback soon.4) Revival of the second generation K-pop groupsSHINee Charts@shineechartsDon't Call Me joins Poet | Artist as the only SHINee albums with Gaon certifications.@SHINee #SHINee #샤이니 #JONGHYUN #종현36731400Don't Call Me joins Poet | Artist as the only SHINee albums with Gaon certifications.@SHINee #SHINee #샤이니 #JONGHYUN #종현 https://t.co/Xg6wHm8sINThe comeback of many second-generation groups has to be one of the best K-pop moments of 2021. Although most of these K-pop idols have hit the thirty mark, they came back with more energy and fire.Influential groups like SHINee and 2PM made blockbuster comebacks with albums Don't Call Me and Must, respectively.5) CL and Rose make history at The Met Galairin ROSÈ MET GALA@YSLRS1CL and ROSÉ first ever FEMALE artist to attend Met Gala, and they both come from YG. QUEEN THINGS #MetGala2021945235CL and ROSÉ first ever FEMALE artist to attend Met Gala, and they both come from YG. QUEEN THINGS #MetGala2021 https://t.co/smoidOTo7I2021 was a huge year for female K-pop idols CL and Rose as they became the first female K-pop idols to attend the Met Gala. Several idols have previously attended the fashion event. However, CL and BLACKPINK's Rose made history by walking the red carpet as the first female K-pop idols.With fashion colliding into K-pop, fans are now expecting more idols in the upcoming global and western galas.Besides the top 5 picks, many other K-pop moments of 2021 eased the fans. With K-pop growing every day, 2022 will be another hit with countless hits, comebacks, and impactful events.