Arsenie Todiraș is a Moldovan singer, best known for representing Moldova in the Eurovision Song Contest 2006. He grew up in Moldova with his mother, father and younger sister. He was once the youngest member of former boyband O-Zone. He now pursues a solo career in Russia and Romania, under the mononym Arsenie or at times the stage name Arsenium.

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.