William Thongrasamy (born 19 August 1982), known under the pseudonym Willy Denzey, is a French-born contemporary R&B and soul singer of Laotian origin.
Denzey was born as William Thongrasamy in Melun, France, and spent his childhood in Le Mée-sur-Seine.
Denzey released in May 2003 a second single, "Le mur du son", which earned a gold disc in France for over 300 000 copies sold.
On 3 November 2003, he released his first album, # 1, in which many artists participated, including La Fouine, Diam's, Kader Riwan & Ol Kainry.
27 September 2004, Denzey released a new album entitled Act II, composed of hip-hop and R&B songs and romantic ballads, including a collaboration with Wayne Beckford, XS, Neje, Mathieu 8, Darren, and Little D. Then he released in January 2005 the song "Et si tu n'existais pas", a cover of Joe Dassin.