Arsenie Toiraş (sometimes spelt Toderaş) (born July 22, 1983) is a Moldovan singer who was the youngest member of the former boyband O-zone. He now pursues a solo career in Romania, under the artist name Arsenium. Arsenie sang at the Eurovision Song Contest 2006 as representative of Moldova with his song "Loca" (Crazy in Spanish) with Natalia Gordienko featuring Connect-R, finishing in 20th place with 22 points.