OnlyOneOf is a South Korean boy band formed by 8D Entertainment in 2019. The group debuted on May 28, 2019, with Dot Point Jump.
On May 1, 8D Creative announced the debut of a seven-member group called OnlyOneOf, which stands for "someone's only one". The style pursued by the group was described as "ubersexual," indicating a mix of softness and strong masculine sexiness. The members trained for three years, coming up with songs, stage composition, costumes and concepts themselves for the weekly evaluations.
It was revealed on May 24 that the group would debut four days later with two title tracks, "Savanna" and "Time Leap", as part of a mini album titled Dot Point Jump. Only the two songs were released on that day along with the music videos, while the other four tracks were revealed sequentially for each 5,555 use of the hashtag "#OnlyOneOf" on Twitter. Members KB, Love and Nine participated in writing and composing two songs. "Savanna" was considered a viral YouTube hit, gaining more than 10 million views in five months.
As part of the promotions of their first EP, the group performed on music shows for seven weeks, held a 4-hour fansigning event, and worked as baristas in Seoul, Busan and Gwangju. Starting October 1, they released the 8-part reality show OnlyOneOf Love Unlock through Mnet and M2.