[16] She co-animated the Viña del Mar International Song Festival between 2002 and 2006, while she has performed as an invited artist five times, receiving the highest awards.

Prior to beginning a musical career, she made some television appearances on a handful of TV shows, including "Generación joven" —at age 11— and "La Pandilla", both part of Televisión Nacional de Chile; also, she performed a small role in the soap opera "De cara al mañana", where she appeared in five episodes.

[6] In Chile the record got her the Disco de Oro, and would later go quadruple platinum in – among other countries – the United States, Colombia, Peru, Ecuador, Bolivia, Puerto Rico, Costa Rica, and Panama.

Noteworthy songs included "Te Pareces Tanto a Él" (You Look so much like Him), "Tonto" (Fool), "Mío" (Mine), "Peligroso Amor" (Dangerous Love), and "Herida" (Hurt, composed by Myriam Hernández).

Once again in 1991 Hernández was invited to the Viña del Mar International Song Festival where she received both the Antorcha and Gaviota de Plata awards.

Also in 1992, Hernández began a new project by founding the "School of Vocal Arts" along with her voice instructor, speech therapist Ricardo Álvarez.

From this album the song "Ese Hombre" (That Man), by Chilean songwriter María Angélica Ramírez, won ASCAP's "Best Pop Ballad" of the year, as well as first place on the Billboard charts.

In 1996, artist Paul Anka invited her to collaborate on an album of all-time Spanish hits called "Amigos" (Friends), on which they performed together the song "Tu Cabeza en Mi Hombro" (a Spanglish cover of Put Your Head on My Shoulder).

Produced by Humberto Gatica and achieving success in all Spanish-language markets, including once again the United States, where the first single, "Huele a Peligro" (It Smells Like Danger), by Armando Manzanero, quickly climbed to the first spot of Billboard magazine's Hot Latin Tracks.

In the June 1999 issue of People En Español she was elected one of 25 Latin beauties, together with Ricky Martin and Spanish actor Antonio Banderas.

In 2000 she released "+ y Más" (+ and More) with a large selection of producers and authors such as Kike Santander, Rudy Perez, Estéfano, Humberto Gatica, and Lester Mendez.

Notable songs included "Mañana" (Tomorrow), "Quién Cuidará de Mí" (Who Will Take Care of Me), "Si yo me Vuelvo a Enamorar" (If I fall in love again), and "Leña y Fuego" (Wood and Fire).

In 2002, Hernández debuted as host of the Viña del Mar International Song Festival, a competition held every year in Chile and in which she participated until 2006 alongside entertainers Antonio Vodanovic, Ricardo Montaner, and Sergio Lagos.