Ligia Barrios, better known as Lya Barrioz, is a Nicaraguan singer, producer, actress and an environmentalism activist, co-founder of S.O.S.

Barrioz took her first artistic steps in 1989 when she won 3rd place and "Most Applauded Song" in the Festival de la Canción Romántica Nicaragüense "Rafael Gastón Pérez".

With this band Barrioz recorded two CDs, Sueños (Dreams) and Bailarlo Contigo (Dance it with you), signed and distributed by Sony Music label.

[1] Barrioz also holds the record of having the first music video shot in film format in the history of Nicaragua with Macolla, "Sólo Soy" (I Only Am).

In 1997 Barrioz launched her first CD as a solo artist, Razones Prohibidas (Forbidden Reasons), all songs composed and produced by Pierre Pierson).