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.
O-Zone performing at Cerbul De Aur in September 2005. From left to right: Arsenie Todiraș, Dan Bălan, Radu Sîrbu