"17회 2022 아시아모델페스티벌, 14~16일 의정부에서 개최" [17th 2022 Asia Model Festival, held in Uijeongbu from 14th to 16th]. BNT News (in Korean). October 13, 2022. Archived from the original on October 16, 2022. Retrieved October 13, 2022.
"CLASS:y JAPAN FAN CONCERT 2023開催決定 および FCチケット抽選先行予約(第一次先行)受付のお知らせ" [CLASS:y JAPAN FAN CONCERT 2023 will be held and FC ticket lottery advance reservation (first advance) reception notice] (in Japanese). CLASS:y Official Japan. December 21, 2022. Archived from the original on December 21, 2022. Retrieved December 21, 2022.
gaonchart.co.kr
Peak chart positions on Circle Album Chart (formerly Gaon Album Chart):
"Class Is Over". Gaon Music Chart (in Korean). May 8–14, 2022. Archived from the original on May 19, 2022. Retrieved May 19, 2022.
Peaks on the Circle (Previously Gaon) Download Chart:
"Shut Down": "2022년 19주차 Download Chart" [Week 19 of 2022 Download Chart]. Gaon Music Chart (in Korean). May 1–7, 2022. Archived from the original on May 12, 2022. Retrieved May 12, 2022.
hankookilbo.com
m.hankookilbo.com
Hong, Hye-min (December 22, 2022). "클라씨, 본격 日 공략 스타트...신곡은 '타겟'" [Classie, full-fledged Japanese strategy start... new song 'Target']. Hankookilbo (in Korean). Retrieved July 27, 2023.
khan.co.kr
sports.khan.co.kr
"'글로벌 행보' 클라씨, 시즌 그리팅 → 일본 팬 미팅까지" ['Global move' Classie, season greeting → Japanese fan meeting] (in Korean). Sports Khan. November 24, 2022. Archived from the original on November 30, 2022. Retrieved November 30, 2022 – via Naver.
mk.co.kr
"MBC, 클라씨 첫 단독 예능 '클라씨의 세계' 편성" [MBC organizes Classy's first solo entertainment show 'Classy's World'] (in Korean). Star News. May 3, 2022. Archived from the original on October 13, 2022. Retrieved October 13, 2022 – via Naver.
mnetjp.com
smart.mnetjp.com
"【ルーキー・オブ・ザ・イヤー(女性)】" [1[Rookie of the Year (female)]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
"【エンディング妖精・オブ・ザ・イヤー】" [[Ending Fairy of the Year]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
"【キリングパート・オブ・ザ・イヤー】" [[Killing part of the Year]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
naver.com
n.news.naver.com
Ahn, Tae-hyun (February 27, 2022). 원지민·김선유·명형서 등, 7인 데뷔 확정...그룹 '클래시'로 뭉친다 [7 members including Won Ji-min, Kim Seon-you, and Myung Hyung-seo confirmed to debut... Unite as a group 'Classy']. News1 (in Korean). Archived from the original on March 8, 2022. Retrieved March 12, 2022.
Kim, Myung-mi (March 2, 2022). '방과후 설렘' 데뷔조 클라씨, 내일(3일) '엠카운트다운' 출격 ['My Teenage Girl' debut team Classy to appear tomorrow (3rd) on 'M Countdown']. Newsen (in Korean). Archived from the original on March 3, 2022. Retrieved March 3, 2022 – via Naver.
Yang, Yu-jin (March 3, 2022). '방과후 설렘' 클라씨, 5일 '쇼! 음악중심' 출연 [공식] [Classy from 'My Teenage Girl' to appear on 'Show! Music Core' on the 5th [Official]]. My Daily (in Korean). Archived from the original on March 4, 2022. Retrieved March 4, 2022 – via Naver.
Yoon, Ki-baek (March 4, 2022). 클라씨, '인가'·'더쇼' 출연 확정... 음악방송 올킬 [Classy, 'Inkigayo' · 'The Show' appearance confirmed... Music show all-kill]. E Daily (in Korean). Archived from the original on March 6, 2022. Retrieved March 6, 2022 – via Naver.
Yang, Yu-jin (April 16, 2022). 지금부터 클라씨 타임...정식 데뷔 시간을 알렸다 [Classy time from now... Official debut time announced]. SPOTV News (in Korean). Archived from the original on April 16, 2022. Retrieved April 16, 2022 – via Naver.
Yoon, Ki-baek (September 21, 2022). "클라씨가 돌아온다... 의문의 숫자 기습 공개" [Classy is back... A surprise reveal of a mysterious number] (in Korean). E Daily. Archived from the original on October 1, 2022. Retrieved October 1, 2022 – via Naver.
"オーディション番組「放課後のときめき」からガールズグループ「CLASSy」今春世界デビュー" [Girl group "CLASSy" debuts this spring from the audition program "My Teenage Girl"]. Nikkan Sports (in Japanese). March 1, 2022. Archived from the original on June 12, 2022. Retrieved March 1, 2022.
Kim, Ju-hee (August 6, 2019). '조아서 구독중' 윤혜림·김리원, 등장인물들 모습 담긴 포스터 공개출처 ['My YouTube Diary' poster released, Yoon Hye-rim and Kim Ri-won featured as characters]. Seoul Economy (in Korean). Archived from the original on March 9, 2022. Retrieved March 12, 2022.
Lee, Eun-hye (November 11, 2021). 명형서 누구?...버스터즈 활동 당시 모습 재조명 [Who is Myung Hyung-seo?... Take a look back at her activities with Busters]. Top Star news (in Korean). Archived from the original on March 9, 2022. Retrieved March 12, 2022.
uplusdive.com
"WATCH: CLASS:y "I GOT A BOY""(video). UPLUSDIVE (in Korean). November 28, 2022. Archived from the original on November 29, 2022. Retrieved November 29, 2022.
web.archive.org
"オーディション番組「放課後のときめき」からガールズグループ「CLASSy」今春世界デビュー" [Girl group "CLASSy" debuts this spring from the audition program "My Teenage Girl"]. Nikkan Sports (in Japanese). March 1, 2022. Archived from the original on June 12, 2022. Retrieved March 1, 2022.
Ahn, Tae-hyun (February 27, 2022). 원지민·김선유·명형서 등, 7인 데뷔 확정...그룹 '클래시'로 뭉친다 [7 members including Won Ji-min, Kim Seon-you, and Myung Hyung-seo confirmed to debut... Unite as a group 'Classy']. News1 (in Korean). Archived from the original on March 8, 2022. Retrieved March 12, 2022.
Lee, Eun-hye (November 11, 2021). 명형서 누구?...버스터즈 활동 당시 모습 재조명 [Who is Myung Hyung-seo?... Take a look back at her activities with Busters]. Top Star news (in Korean). Archived from the original on March 9, 2022. Retrieved March 12, 2022.
Kim, Ju-hee (August 6, 2019). '조아서 구독중' 윤혜림·김리원, 등장인물들 모습 담긴 포스터 공개출처 ['My YouTube Diary' poster released, Yoon Hye-rim and Kim Ri-won featured as characters]. Seoul Economy (in Korean). Archived from the original on March 9, 2022. Retrieved March 12, 2022.
Kim, Myung-mi (March 2, 2022). '방과후 설렘' 데뷔조 클라씨, 내일(3일) '엠카운트다운' 출격 ['My Teenage Girl' debut team Classy to appear tomorrow (3rd) on 'M Countdown']. Newsen (in Korean). Archived from the original on March 3, 2022. Retrieved March 3, 2022 – via Naver.
Yang, Yu-jin (March 3, 2022). '방과후 설렘' 클라씨, 5일 '쇼! 음악중심' 출연 [공식] [Classy from 'My Teenage Girl' to appear on 'Show! Music Core' on the 5th [Official]]. My Daily (in Korean). Archived from the original on March 4, 2022. Retrieved March 4, 2022 – via Naver.
Yoon, Ki-baek (March 4, 2022). 클라씨, '인가'·'더쇼' 출연 확정... 음악방송 올킬 [Classy, 'Inkigayo' · 'The Show' appearance confirmed... Music show all-kill]. E Daily (in Korean). Archived from the original on March 6, 2022. Retrieved March 6, 2022 – via Naver.
Yang, Yu-jin (April 16, 2022). 지금부터 클라씨 타임...정식 데뷔 시간을 알렸다 [Classy time from now... Official debut time announced]. SPOTV News (in Korean). Archived from the original on April 16, 2022. Retrieved April 16, 2022 – via Naver.
Yoon, Ki-baek (September 21, 2022). "클라씨가 돌아온다... 의문의 숫자 기습 공개" [Classy is back... A surprise reveal of a mysterious number] (in Korean). E Daily. Archived from the original on October 1, 2022. Retrieved October 1, 2022 – via Naver.
"'글로벌 행보' 클라씨, 시즌 그리팅 → 일본 팬 미팅까지" ['Global move' Classie, season greeting → Japanese fan meeting] (in Korean). Sports Khan. November 24, 2022. Archived from the original on November 30, 2022. Retrieved November 30, 2022 – via Naver.
"WATCH: CLASS:y "I GOT A BOY""(video). UPLUSDIVE (in Korean). November 28, 2022. Archived from the original on November 29, 2022. Retrieved November 29, 2022.
"CLASS:y JAPAN FAN CONCERT 2023開催決定 および FCチケット抽選先行予約(第一次先行)受付のお知らせ" [CLASS:y JAPAN FAN CONCERT 2023 will be held and FC ticket lottery advance reservation (first advance) reception notice] (in Japanese). CLASS:y Official Japan. December 21, 2022. Archived from the original on December 21, 2022. Retrieved December 21, 2022.
Peaks on the Circle (Previously Gaon) Download Chart:
"Shut Down": "2022년 19주차 Download Chart" [Week 19 of 2022 Download Chart]. Gaon Music Chart (in Korean). May 1–7, 2022. Archived from the original on May 12, 2022. Retrieved May 12, 2022.
"MBC, 클라씨 첫 단독 예능 '클라씨의 세계' 편성" [MBC organizes Classy's first solo entertainment show 'Classy's World'] (in Korean). Star News. May 3, 2022. Archived from the original on October 13, 2022. Retrieved October 13, 2022 – via Naver.
"클라씨, 25일 '클라씨 연구소' 출격...데뷔 20일만에 이름 건 온라인쇼 진행" [Classy, 'Classy Lab' on the 25th... 20 days after debut, an online show under the name] (in Korean). Wow TV. May 25, 2022. Archived from the original on October 13, 2022. Retrieved October 13, 2022.
"17회 2022 아시아모델페스티벌, 14~16일 의정부에서 개최" [17th 2022 Asia Model Festival, held in Uijeongbu from 14th to 16th]. BNT News (in Korean). October 13, 2022. Archived from the original on October 16, 2022. Retrieved October 13, 2022.
"【ルーキー・オブ・ザ・イヤー(女性)】" [1[Rookie of the Year (female)]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
"【エンディング妖精・オブ・ザ・イヤー】" [[Ending Fairy of the Year]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
"【キリングパート・オブ・ザ・イヤー】" [[Killing part of the Year]]. Mnet Smart (in Japanese). Archived from the original on November 30, 2022. Retrieved November 30, 2022.
"클라씨, 25일 '클라씨 연구소' 출격...데뷔 20일만에 이름 건 온라인쇼 진행" [Classy, 'Classy Lab' on the 25th... 20 days after debut, an online show under the name] (in Korean). Wow TV. May 25, 2022. Archived from the original on October 13, 2022. Retrieved October 13, 2022.