ONEUS is a boy group formed by RBW (Rainbow Bridge World). The six-member group composed of Ravn, Seoho, Leedo, Keonhee, Hwanwoong, and Xion made their official debut on January 9, 2019 with the release of their debut extended play (EP), Light Us.
2017 to 2018: Pre-debut
Members Seoho, Hwanwoong, and Keonhee were first introduced to the public as three of the male trainees set to represent RBW on the second season of Produce 101 in 2017. However, they were eliminated quite early on at 94th place, 42nd place, and 33rd place, respectively. Following his appearance on Produce 101, Seoho, together with Ravn, joined another survival show in the second half of the year – Mix Nine, produced by YG Entertainment. Ravn finished in the 27th place, while Seoho was booted out in 19th place. Their fellow trainee, Leedo, also joined the program but did not pass the first audition.
In November 2017, RBW introduced a debut project called “RBW Trainee Real Life — We Will Debut” with the goal of launching their boy groups. Keonhee and Hwanwoong, along with seven other trainees (three boys and four girls) participated in the first chapter of the project. The trainees’ main task in the project was to invite 100 people to be part of their audience in the evaluation stage held at RBW Art Center, for which a tot al of 1,400 people came.
The project, which aired on Olleh TV and Naver’s V-Live, showed the daily lives of the trainees, including their monthly training, evaluations, and performances.
In December 2017, Keonhee and Hwanwoong took part in the second chapter of the project called “Special Party” alongside their labelmates, MAS.
In early 2018, Keonhee, Hwanwoong, Ravn, Seoho, and Xion were introduced as the pre-debut team, RBW BOYZ. In April of the same year, the group introduced their new member, Leedo. They were confirmed to debut as ONEUS in June 2018 and on September 27, they released their first official single as a group with their labelmates, ONEWE (formerly MAS), titled “Last Song”.
2019: Official Debut and growing popularity
ONEUS made their official debut on January 9, 2019 with the release of their first EP, Light Us, featuring the title track “Valkyrie” along with six other tracks. They held their debut showcase at the Yes24 Live Hall on the same day.
On March 11, RBW announced that Ravn will go on a temporary hiatus from the group due to personal and health issues.
Their debut album hit number 1 on iTunes Top K-pop Albums Charts and made it to the Top 10 in Canada, Italy, Spain, England, and Germany.
In May 2019, ONEUS released their second mini-album, Raise Us, which consists of six tracks, including the lead single “Twilight”. The album debuted number 1 on the iTunes Top K-Pop Albums Charts in Finland and landed in the Top 5 in four other countries.
Member Ravn also returned to promote with the group after his temporary hiatus.
In August that year, the group was nominated for the Male New Artist Award at the Genie Music Awards held at the Olympic Gymnastics Arena. In the same month, they won the Next Artist Award at the third edition of the Soribada Best K-Music Awards held at the Olympic Gymnastics Arena.
The group was also announced as part of the lineup for KCON 2019 LA but was unable to attend due to visa issues.
On September 30, ONEUS released their third EP, Fly With Us, featuring the title track “Lit” along with five other tracks.
The group embarked on their first U.S. tour titled 2019 ONEUS “FLY WITH US” TOUR IN USA ONEUS in November 2019, beginning with a show in New York and followed by performances in Chicago, Atlanta, Dallas, Minneapolis, and Los Angeles. The tour was initiated by fans through My Music Taste, an online service that organizes concerts upon fans’ requests.
Prior to the start of the tour, RBW announced that member Seoho will not be able to participate in the tour due to health issues.
2020: First single album
The group welcomed 2020 with three nominations at the Seoul Music Awards — New Artist Award, Popularity Award, and Hallyu Special Award.
In March, it was revealed that the group is preparing for a comeback with the release of their first single album, In Its Time.
The album is the group’s first release six months after they concluded the 3-part series, US, in 2019. It is slated to be released on March 24 and will feature the lead single “A Song Written Easily” and the B-side track “Hide and Seek”.