O-Zone is a Moldovan Eurodance group produced by Dan Bălan; originating in 1998 as a duo, which consisted of Bălan, and Petru Jelihovschi before the latter's departure. Their official trio lineup in 1999 consisted of Bălan, Radu Sîrbu, and Arsenie Todiraș.

The group gained global popularity with their song "Dragostea din Tei" and their subsequent album DiscO-Zone, which was released in 2003, before disbanding the following year.

The group members have since focused on their solo careers. The band occasionally reunited for concerts in 2017 (Chișinău, Moldova; Bucharest, Romania) and 2019 (Bucharest, Romania). In 2024, it was announced that O-Zone are going to do a summer tour, but this time as a tribute band, consisting of Arsenie as only singer and two dancers. Worldwide, O-Zone have sold over 12 million copies of "Dragostea din tei" and over 2.5 million copies of its parent album DisO-Zone.