Desconocida
Desconocida (Eng. : Unknown or Stranger) is the title of the fourth studio album by Spanish singer Marta Sanchez (in 1998). With this album, Marta returned to the pop music on her first albums, but now with a more Italian feel. The album was produced once again by Christian De Walden and a few Italian co-producers. The singles were "Quiero Mas de Ti", "Desconocida", "Los Mejores Años de Nuestra Vida", "Estrellas de Fuego" and "Loca de Amor". The album is dedicated to the late father of the artist, and it sold 600,000 copies worldwide. The English version is called Perfect Stranger. Track listing 
The following are titles/durations of tracks on the album:

 Desconocida (Christian De Walden, Steve Deutsch, Steve Singer, Mike Shepstone, Carlos Toro) – 4:37
 Será (Claudia Brant, Sebastian Schon) – 3:34	
 Quiero Mas de Ti (Alfons Weindorf, Carlos Toro, Bernd Meinunger) – 3:25	
 Los Mejores Años de Nuestra Vida (I Migliori Anni Della Nostra Vita) (Maurizio Fabrizio, Guido Morra, Adapt. Carlos Toro) – 4:23	
 Despues de Ti (Christian De Walden, Steve Singer, Ludis Sorto, Carlos Toro) – 4:34
 Estrellas de Fuego (Cristian De Walden/Michael Mishaw, Steve Singer, Carlos Toro) – 4:30	
 Corazón Que Mira Al Sur (Marta Sanchez) – 4:31	
 Loca de Amor (Claudia Brant, Dany Tomas, Marcelo Wengrovski) – 4:22
 Habla el Corazón (Cheope, Alberto Mastrfrancesco, Vito Mastrofrancesco, Carlos Toro) – 4:03
 Innocente (Jose C. Machado, Pedro Guerra) – 4:00	
 Más de Lo Que Pedí (Ralf Stemmann, Michael Holm, Jenny Macaluso. Adapt. Carlos Toro) – 4:38
 Como Tu y Yo (Christian de Walden, Michael Mishaw, Steve Singer, Carlos Toro) – 4:30	
 Desconocida [Bombay Mix] (Christian de Walden, Steve Deutsch, Steve Singer, Mike Shepstone, Carlos Toro) – 4:51. Personnel  
 Marta Sanchez – vocals
 Ralf Stemmann – synclavier programming
 Franco Bocuzzi, Ralf Stemmann, Paul Mirkovich – keyboards programming
 Paul Mirkovich and Randy Waldman – acoustic piano
 Paul Jackson Jr., Tim Pierce, Dean Parks and James Harrah – guitars
 Abraham Laboriel and Leland Sklar – bass
 John Robinson – drums
 Efrain Toro – percussions
 Rafik Shourbagui – oud/sitar
 Suzanne Teng – pennywhistle
 Kenny O'Brien and Christian De Walden – background vocals arrangers
 Kenny O'Brien, Brandy Jones, Bambi Jones. Gisa Vatchy, Isela Sotelo, Leyla Hoyle, Michael Mishaw, Carlos Munguia and Sergio Aranda – background vocals
 Amina Afifi – vocal screams on "Desconocida", bombay Mix

Technical
 Producer: Christian De Walden
 Co-Producer, engineer and mixer: Walter Clissen
 Co-Producer (Desconocida, Despues de Ti, Estrellas de Fuego, Innocente, Como Tu y Yo): Paul Markovich
 Co-Producer (Será, Habla el Corazón and Más de lo que Pedi): Ralf Stemmann
 Co-Producer (Quiero Mas de Ti, Corazon Que Mira al Sur, Desconocida-Bombay Mix): Franco Boccuzzi. Co-Producer (Corazon Que Mira al Sur): Marta Sanchez
 Mastering: Brian "Big Boss" Gardner at Bernie Grundman Mastering, Hollywood, CA. References

1998 albums
Marta Sánchez albums
Mercury Records albums