On the 6th (local time), the digital single 'Mixtape: Ae' released on June 26 reached the top of the US Billboard 'World Digital Song Sales Chart', and the result was Stray Kids' first No. 1 on the Billboard chart, making it an explosive worldwide record. popularity was realized. In addition, the album 'IN生' proved their unstoppable progress by obtaining the double platinum certification given to albums that sold over 500,000 copies on the Gaon Chart.

Weekly Albums Chart October 25, 2021]. Oricon (in Japanese). Archived from the original on October 20, 2021 . Retrieved October 21, 2021. Herman, Tamar (December 22, 2021). "25 best K-pop albums of 2021: Twice, Red Velvet, NCT 127, Seventeen and Monsta X are all there, but who took the No 1 spot?". South China Morning Post . Retrieved December 29, 2021. Mane, Anwaya (October 18, 2021). "Stray Kids' 'Thunderous' MV hits a new YouTube milestone; Deets Inside". Pinkvilla. Archived from the original on October 19, 2021 . Retrieved October 18, 2021.The group performed "Thunderous" at the 2021 KBS Song Festival on December 17 at Namhansanseong; the performance was described as a "mega performance" and "action movie-like feeling". [117] They performed the Christmas version of "Thunderous" at 2021 SBS Gayo Daejeon on December 25, using canes and group dance, and parodying Squid Game 's ttakji, and dalgona game, alongside " Winter Falls" from the single album Christmas EveL, and covered IU's "Merry Christmas Ahead", performed by the members Changbin, Han, Felix, Seungmin, and I.N, as part of Christmas carol medley with other artists. [118] [119] They closed the year with a performance of "Thunderous" at 2021 MBC Gayo Daejejeon on December 31, adding the ringing of a New Year's bell before the New Year ceremony. [120]

Yang, Yu-jin (September 8, 2021). " '쇼챔피언' 스트레이 키즈, 2주 연속 1위…"스테이 덕분" [종합]"['Show Champion' Stray Kids, 2 Consecutive Weeks Win…"Thanks to STAY" [General]]. Mydaily (in Korean) . Retrieved September 8, 2021. Mixtape : 애'로 미국 빌보드 '월드 디지털 송 세일즈 차트' 정상에 올랐고 해당 성적은 스트레이 키즈의 빌보드 차트 첫 1위 기록으로 폭발적인 월드와이드 인기를 실감케 했다. 또 앨범 'IN生'은 가온차트 기준 판매량 50만 장 돌파 앨범에 부여하는 더블 플래티넘 인증을 획득하며 파죽지세 행보를 증명했다. Before the album announcement, in early July, Stray Kids released SKZ Camp Song: Howl in Harmony, a five-episode camp-type online program that documents the group's song-creation process and the making of music videos for them. [11] They group were separated into three teams: Quokka Bbang Daengi (Han, Seungmin, I.N; formerly Margarine Bbang) to write the song "Gone Away"; [12] Yeoreum Wangja (Lee Know, Changbin, Felix) for "Surfin'"; [13] and Bekka Wang (Bang Chan, Hyunjin) for "Red Lights". [14] [11] In early April, the group also teased the B-side "Sorry, I Love You" on their V Live's live-streaming content Chan's Room, [15] [16] and "The View" was teased as a title on the music video of "Mixtape: Oh" in late June. [17] Title and concept [ edit ] Chu, Seung-hyun (August 28, 2021). "[이주의 가수] 스트레이 키즈, 진짜 자신의 길을 찾은 소년들"[[Singer of the Week] Stray Kids, Boys Who Really Found Their Way]. Seoul Economic Daily (in Korean) . Retrieved August 30, 2021. Weekly Albums Chart September 27, 2021]. Oricon (in Japanese). Archived from the original on September 22, 2021 . Retrieved September 22, 2021.a b "Oficjalna lista sprzedaży:: OLiS - Official Retail Sales Chart". OLiS. Polish Society of the Phonographic Industry. Retrieved September 9, 2021. album- és válogatáslemez-lista - eladási darabszám alapján - 2021" (in Hungarian). MAHASZ . Retrieved February 1, 2022.

HotSauce – composition (2), arrangement (2), keyboard (2), drum programming (2), computer programming (2) noise를 가진 '잔소리꾼'과 노래하는 '소리꾼'이라는 이중적인 의미를 하나의 단어로 삼아, 다른 사람들이 왈가왈부 떠드는 잔소리에 절대 기죽지 않고 할 말은 하며 줏대를 지키겠다는 메시지를 표현했다. 잔소리를 끊임없이 내뱉는 '잔소리꾼'들과 이에 굴하지 않고 할 말은 하며 꿋꿋이 우리만의 음악을 하겠다는 당당한 '소리꾼' 스트레이 키즈의 모습이 대비된다. 웅장한 멜로디에 전통 국악의 화려하고도 다양한 소리를 더해 듣는 재미를 높였고 '우르르쾅쾅쾅쾅', '빵빵' 등 추임새가 스트레이 키즈만의 흥의 정점을 완성한다. Prove your all-rounder skills by winning 'Kingdom'! Fandom expectations at home and abroad for the first album released in 2021 peak! Kim, Min-seo (September 12, 2021). "[인기가요 라인업] 현아&던·이하이·백아연·비투비·스트레이키즈·권은비·크래비티 등"[[Inkigayo Line-Up] HyunA&Dawn·Lee Hi·Baek A-yeon·BtoB·Stray Kids·Kwon Eun-bi·Cravity, etc.]. Mediapen (in Korean) . Retrieved September 12, 2021. Lee, Seul (August 2, 2021). "스트레이 키즈, 'NOEASY' 트레일러 쿠키 영상 오픈…유쾌한 예고장"[Stray Kids Released the Post-Credits Clip … a Delightful Reminder]. Xportsnews (in Korean) . Retrieved August 2, 2021.a b Kim, Myung-mi (August 30, 2021). "스트레이 키즈 '소리꾼' MV, 공개 6일만 5천만뷰 돌파"[Stray Kids' 'Thunderous' MV Surpasses 50 Million Views in 6 Days of Release]. Newsen (in Korean) . Retrieved August 30, 2021. Jung, Byung-geun (September 28, 2021). "오마이걸·스키즈·황치열, '2021 더팩트 뮤직 어워즈'서 펼칠 '최초 무대' 기대"[Oh My Girl·SKZ·Hwang Chi-yeul, Looking Forward to the 'Debut Performance' at the '2021 The Fact Music Awards']. The Fact (in Korean) . Retrieved September 28, 2021. K-Pop Daebak Present… Best K-Pop Songs of 2021". Spotify. December 20, 2021 . Retrieved January 6, 2022.

a b c Khushboo, Madaan (September 13, 2021). "WATCH: Stray Kids' Bang Chan and Hyunjin trapped in a dramatic MV for 'Red Lights' ". Pinkvilla . Retrieved September 13, 2021. Seon, Mi-kyung (September 24, 2021). "스트레이 키즈, 오늘(24일) '뮤직뱅크'부터 수록곡 'DOMINO' 활동 돌입"[Stray Kids, Begins B-Side 'DOMINO' Promotion from 'Music Bank' Today (24th)]. Osen (in Korean) . Retrieved September 24, 2021. The Genius Community's 50 Best Albums of 2021". Genius. December 28, 2021 . Retrieved December 29, 2021.Chan's Room • Lee Know's Play Room • Arirang • Spilling Dwaekki • HyunnieBinnie • Hyunjin's Practice Room • Hyunjin's Counseling Center • Ret-D • BboBboz • 9.15 Lix FM • Puppy Cat School • Seungmin's Small But Certain Happiness • This Again with I.N and Seungmin • The Maknae's Private Life a b Yeo, Gladys (June 27, 2021). "Stray Kids announce the return of Hyunjin, release new song 'Mixtape: OH' ". NME . Retrieved June 28, 2021. consisting of Bang Chan ( left), Changbin ( center), and Han ( right), a production team of Stray Kids, who wrote and produced the group's all release, including Noeasy. a b Chin, Carmen (August 16, 2021). "Stray Kids share snippet of new song 'Sorry, I Love You' from 'NOEASY' ". NME . Retrieved August 17, 2021.