'The Key of My Heart) is the 10th studio album recorded by Dominican singer-songwriter Juan Luis Guerra, It was released by EMI Televisa Music on March 20, 2007.

Its production and musical structure of album is based on merengue, bachata and salsa and encompasses elements of Blues, Son, Jazz, Mambo and Bossa Nova.

La Llave de Mi Corazon was met with critical acclaim with praise for its musical structure and mix and variety of tropical elements on the songs.

On April 27, 2006, he appeared in Sting`s concert at Altos De Chavon in La Romana, Dominican Republic as a surprise guest.

[1] Later that year, he collaborated on a song with Diego Torres called "Abriendo Caminos" and later with the Mexican rock group Mana on the single "Bendita La Luz".

[2] On January 22, 2007, the lead single "La Llave de mi corazon" was released along with the music video starring the actress Zoe Zaldaña.

Guerra later explained that he decided to record in other languages in order to crossover to other markets outside Latin America and the album was supposed to be an artistic renovation on his musical career because it contains music elements of mambo, el funk y el rock mixed with tropical rhythms such as merengue, bachata and salsa.

[9] "La Travesia" is a merengue song that contains lyrics about how can not find a love like his lover in any part of the world.

"Solo Tengo Ojos Para Ti" is an acoustic song about that how he only have eyes to her lover making references on how he can`t no other women in a romantic way.

"La llave de mi corazon" is a track with elements of tropical music mixed with merengue, mambo, funk, hip hop, blues and rock and is about a woman who met in a website and how she had the key of heart because he fell in love.

[11] "Something is Good" featuring Chiara Civello is a accosting song with elements Bossa Nova about how he had the feeling of positive vibes on his life.

Evan C. Gutierrez from Allmusic gave La llave de mi corazón 4.5 out of 5 stars and referred to the record as "an intoxicating mix of merengue, bachata and salsa so expertly written and performed as to become an old favorite after the very first listen".

The following credits are from AllMusic and from the La llave de mi corazon liner notes[36] All tracks are written by Juan Luis Guerra