The group debuted under the name NewJeans on July 22, 2022, with the single "Attention", their first number-one song on South Korea's Circle Digital Chart.

When Australian-born Danielle Marsh lived in South Korea, she was a regular cast member of tvN's Rainbow Kindergarten, a variety show that aired until 2011.

[12] Preparations for a new girl group in collaboration between Hybe and Source Music began as early as 2019[13][14] where Min Hee-jin was to be the creative director, after joining as the chief brand officer that same year.

[15] At the time of Min joining in 2019, it was revealed she would be the creative lead in multiple girl groups, excluding Big Hit, while a separate label would also be established later where she would be a producer.

[10] NewJeans released their second single, "Hype Boy", on July 23, 2022, along with a clip revealing the members' names and four music videos specific to their perspectives.

[35] ADOR denied the accusation and stated that the lyrics refer to "the paired idea of burning CDs and baking cookies, which share the same conceptual verb in Korean".

[45] "Ditto" also currently holds the record for longest-running Perfect all-kill—a feat referring to a song's consistent number-one position on IChart's real-time, daily, and weekly charts—at 655 hours.

[37] OMG was accompanied by a second single of the same name, which went viral on TikTok, peaked at number 74 on the Billboard Hot 100,[50][51] and became the group's most streamed song on Spotify.

[53] In July 2023, NewJeans held their first sold-out fan meeting, titled Bunnies Camp, at the SK Olympic Handball Gymnasium in Seoul.

[92] Throughout the dispute, NewJeans' members supported Min, including a surprise YouTube livestream on September 11 where they expressed distrust and rebuttal of Hybe's management, detailing issues concerning workplace harassment, leaking of private information, and the deletion of previously released content.

[95] Jon Caramanica of The New York Times described the NewJeans rebellion as a significant and rare labor dispute in K-pop, highlighting it as one of the highest-profile conflicts in recent years.

[98] On October 15, Hanni testified as a reference witness during the National Assembly's Environment and Labor Committee audit in South Korea, which focused on workplace harassment and artist protection in the entertainment industry.

[101][102] On November 13, Yonhap News reported that NewJeans' members sent a letter to ADOR, threatening to terminate their exclusive contract if major breaches were not rectified within 14 days.

This move was prompted by a leaked internal document suggesting that Hybe wanted to discard NewJeans and the rejection of their request to reinstate Min Hee-jin as ADOR's CEO.

[112][113][114] On December 5, ADOR petitioned the court to confirm the validity of NewJeans' contract and cautioned others against involvement, expressing their commitment to talk with the group members.

[117] Their first post shared details about offering free food and beverages to K-pop fans attending a rally in Yeouido, Seoul, supporting the impeachment of South Korean president Yoon Suk Yeol.

[128] Meanwhile, with their "Supernatural" release, they explored new jack swing and dance-pop with 250's interpolation of "Back of My Mind", a 2009 song by Japanese singer Manami which was produced by Pharrell Williams.

[136] The Hankook Ilbo aligned NewJeans' style with the "newtro" aesthetic due to the retro sensibilities;[137] the newspaper's music critic Choi Eun-soo characterized their sound as "easy listening" devoid of "explosive" EDM embellishments that had saturated the market.

[131] Some critics, such as Sheldon Pearce and Joshua Minsoo Kim writing for NPR, described NewJeans's music as soft, contained, and delicate, which is a stark contrast to their contemporaries' "maximalist" and "harsh, buzzing" sounds.

[126] Writing in The Korea Times, scholar and cultural critic David Tizzard says that a lot of NewJeans' songs are influenced by 90s British jungle and drum and bass.

[148][149] Azrin Tan argued in Vogue Singapore that NewJeans presented a "new aesthetic", characterized by minimal soft make-up and straight black hair, that defied beauty standards in the contemporary K-pop industry with its simplicity.

[150] Similarly, Jon Caramanica notes in The New York Times that "The production is sensuous and restrained [...] NewJeans deploys its contemporary reference points in service of a throwback idea.

"[151] Their styling contributed in shaping NewJeans's girl-next-door image,[152] deemed by Tan a "stark shift away from the usually high-octane aesthetic" of contemporary K-pop groups.

[153][154] Since NewJeans's debut, Choi has incorporated in their style elements from several modern trends, such as gorpcore and blokecore, and designers, such as Kiko Kostadinov, Martine Rose, Marine Serre, and Hyein Seo.

[143][144] Edith Winslow of Vogue Australia has described NewJeans's fashion style as a combination of "bold pieces, contemporary designers, and the confidence to pull it all off".

[169][170][171] They have served as global ambassadors for Coca-Cola Zero Sugar, LG Electronics' Gram, whose laptops rapidly sold out,[172] Lotte's Pepero, and Indofood's Indomie.

[200] In December 2022, it was announced that NewJeans and ADOR would annually donate part of the profits from the group's album sales to the Snail of Love charity to fund cochlear implant surgery and speech therapy treatment for the hearing-impaired.

[202] In February 2023, NewJeans and ADOR donated ₩200 million to the World Food Programme to help victims of the earthquake that struck Turkey and Syria that month.

[207] Music critic Jung Min-jae told NBC News that "NewJeans is everything contemporary K-pop was not, arriving fresh-faced in a seemingly unchanging industry".

[129] Critics noted NewJeans's influence on junior K-pop boy groups like Riize and TWS, who adopted a similar concept and "easy listening" sound.