1) Valeria Olehivna Nalyvayko (born 17 September 1993 in Poltava, Ukraine), known simply as RIYA (ukr.: Рія), is a Ukrainian singer-songwriter. 2) Riya is the feminine part of the japanesse duo Eufonius. 3) Riya is a singer and songwriter, who works with the most well-known Drum and Bass, Dub, House and Electro House artists, like D-Bridge, Instra:mental, Spectrasoul, Goldie, Fabio, Bailey, Marcus Intalex, Friction, Andy C, Doc Scott, Total Science, SPY, Lenzman, and Bryan Gee… - http://www.myspace.com/riyamusicpage