O-Zone was a pop group made up of Dan Bălan, Radu Sârbu, and Arsenie Toderaş. Originally from Moldova, the band launched in Romania where they are currently based. They mainly play eurodance music and are famous for the single "Dragostea Din Tei", a notable summer hit which reached Number 1 in the singles charts of many countries during 2003 and 2004, and Number 3 in the United Kingdom. The recent follow-up single "Despre Tine" had similar success across Europe.

Despite its multi-platinum status in Europe, O-Zone never even scraped the bottom of the charts in America until an English recording of "Dragostea Din Tei" was released in early 2005, under the title "Ma Ya Hi". "Ma Ya Hi" was performed by Lucas Prata and Dan Balan on the New York Today Show on February 22, 2005. Nevertheless, "Ma Ya Hi" did not prove to be a hit, peaking only at #72 in March on Billboard.

The group was also rumoured, in 2005, to be representing Moldova in the Eurovision Song Contest. However these rumours proved not to be true as the group didn't take part in the Moldovan pre-qualifiers.

In 2005 the group split up. All of the members went their separate ways and started their own solo careers.