AMPERS&ONE (pronounced "ampersand one"; Korean: 앰퍼샌드원) is a South Korean boy group under FNC Entertainment. The group is composed of 7 members, in order of introduction: Jiho, Mackiah, Siyun, Brian, Kyrell, Seungmo & Kamden. They debuted on November 15, 2023 with the track "On And On" from their debut single album AMPERSAND ONE.

Kamden, Brian and Jiho are best known for participating in Mnet's 2023 reality competition show BOYS PLANET, placing 17th, 37th, and 55th respectively. Prior to that, Kamden and Jiho participated in MBC's 2021 reality competition show Extreme Debut: Wild Idol, where they were eliminated on the 3rd episode. Siyun participated in the 2018 reality competition show YG TREASURE BOX by YG Entertainment and JTBC, where he was eliminated in the 8th episode. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.