She began singing professionally with her father Carlos Nilson[1] in several songs for Argentine television shows like Ritmo de la Noche starring Marcelo Tinelli, Jugate Conmigo and Verano del '98 with Cris Morena.
In the 1990s, she began performing with her own rock bands until 1995 the Argentinian pop group the Sacados hired Nilson to sing and play keyboards during their Colombian tour with Shakira and since then has been the Sacados' vocalist till present.
She has collaborated in many records as a writer and singer with Julio Iglesias, Ricardo Montaner, Azúcar Moreno, Alexandre Pires,[2] Kelly Clarkson, Shaila Durcal, Noelia, Patricia Manterola, Aracely Arambula, Tierra Cero, Ninel Conde, Twiggy, Machito Ponce, Cynthia, Kika, Edgar, Pilar Montegro, and Don Omar.
She also wrote music for other Mexican television series, including La Jaula de Oro and El Amor no tiene Precio.
Cynthia is married to Darío Moscatelli, Music Producer and The Sacados leader.