VIVIZ is a three-member Korean girl group who formed in Seoul, South Korea in October 2021. Composed of erstwhile GFRIEND members Eunha, SinB, and Umji, the trio inaugurated their name through their visual film, with VIVIZ being short for "VIVId dayZ" and nodding to the last syllable of each member's name; Eunbi (은비), SinB (신비), and Umji (엄지). Signed to BPM Entertainment, VIVIZ stepped out with their debut EP, Beam of Prism, in February 2022. The K-pop release contains seven tracks, including lead single "Bop Bop!," which incorporates elements of Latin pop and disco. Other tracks on the EP carry the typically diverse sonic quality of K-pop, taking in '90s R&B among other styles.