Born Cristian Sáenz Castro on December 8, 1974, in Mexico City, he is the son of two very popular Mexican entertainers, actress/singer Verónica Castro and comedian/actor Manuel Valdés (aka El Loco); he often refers to his mother as his top role model while for most of his life he has been estranged from his father. Castro made his performance debut at a young age, appearing alongside his mother in the telenovela El Derecho de Nacer in 1981. He continued to make television appearances throughout the remainder of the decade, acting in the series Jugemos a Cantar (1982), Herencia Maldita (1986), and Mi Segunda Madre (1989). Castro's singing career began in 1992 with "Agua Nueva." The first of four albums released by Fonovisa, "Agua Nueva" proved impressively successful, spawning the smash hit "No Podras," which went all the way to number three on the Hot Latin Tracks singles chart. A pair of follow-up singles, "Agua Nueva" and "Diez Mil Lagrimas," also charted but were only minor hits. His successive releases on Fonovisa -- Un Segundo en el Tiempo (1993), El Camino del Alma (1994), and El Deseo de Oir Tu Voz (1996) -- each spawned its share of hits, including the chart-toppers "Nunca Voy a Olvidarte," "Amarte a Ti," and "Amor," as well as the Top Ten hits "Con Tu Amor," "Mañana," "Azul Gris," "Esperándote," and "No Puedo Arrancarte de Mi."
Castro then switched from Fonovisa to BMG in 1997 for Lo Mejor de Mi without any hitmaking interruption, for the title track marked his fourth time topping the Hot Latin Tracks singles chart while "Si Tu Me Amaras" went Top Five. His successive albums on BMG -- Mi Vida sin Tu Amor (1999), Remixes (2000), "Azul" (2001), Amar Es (2003), and Hoy Quiero Soñar (2004) -- were similarly successful, adding additional hits to his catalog: "Azul" (number one); "Alguna Vez," "Mi Vida sin Tu Amor," "Por Amarte Asi," "Te Llamé," "Te Buscaria" (Top Three); "Volver a Amar" (Top Five); "Lloran las Rosas," "Yo Quería," "Con Ella," "No Hace Falta" (Top Ten), and "Lloviendo Estrellas" (Top 20). Plus, he wrote a 1998 Top Five duet for Olga Tañón, "Escondidos," on which he performed. During this eight-year tenure with BMG, Castro worked closely with producer Kike Santander and songwriter Rudy Pérez, a partnership that resulted in some of the best music of his career.
In 2005 Castro switched labels again, moving this time to Universal for Dias Felices, on which he collaborated with another super-producer, Cachorro López, who had recently helmed Julieta Venegas' commercial breakthrough, Sí (2004). The album spawned the biggest hit of his career to date, "Amor Eterno," a Hot Latin Tracks chart-topper that became his first single to crack the Billboard Hot 100, climbing all the way to number 78 despite its Spanish-language vocals. In 2007 Castro did something different and released a mariachi album, El Indomable, produced by the King of Rancheras, Vicente Fernández. Understandably less successful than his usual Latin pop albums, El Indomable was nonetheless a respectable effort that spawned a pair of singles, "Tu Retirada" and "Te Sigo Queriendo," which performed best on the Regional Mexican Airplay chart. ~ Jason Birchmeier, Rovi