[3] The album includes two number-one singles by Hernández, "Te Pareces Tanto a Él" and "Peligroso Amor", and her self-penned top three hit "Herida".

[5] Dos was produced by Humberto Gatica and features songs written by Gogo Muñoz, Alberto Plaza, Vilma Planas, Alvaro Torres, Juan Carlos Duque and by the performer herself.

The album singles produced several international hits that spent several weeks at number one of the rankings in the continent.

[2] "Herida" was covered by Brenda K. Starr in a salsa version which reached number-one on the Latin Tropical Airplay chart; Mexican singer Lidia Ávila also recorded her rendition in a cumbia version; and Brazilian singer Daniel also released his take on the track.

[2] Dos sold 15,000 units in Chile in less than two weeks of release, and was awarded with a Gold album certification.