Alejandro Sánchez Pizarro, better known as Alejandro Sanz (Spanish pronunciation: [aleˈxandɾo ˈsanθ]; born 18 December 1968), is a Spanish musician, singer and composer. He has won 24 Latin Grammy Awards and 4 Grammy Awards. He has received the Latin Grammy for Album of the Year three times. The singer is notable for his flamenco-influenced ballads, and has also experimented with several other genres including pop, rock, funk, R&B and jazz.

Born in Madrid to parents from Andalusia, Sanz began playing guitar at age 7 taking influence from his family's flamenco roots. Sanz released his debut album at age nineteen, although he did not gain commercial success in Spain until his second release, Viviendo Deprisa (1991). His next two records, Si Tú Me Miras (1993) and 3 (1995) also fared well commercially, but it was his 1997 breakthrough album Más that garnered international success. El Alma al Aire followed in 2000, selling more than a million copies in its first week. In 2002, he became the first Spanish artist to record an MTV Unplugged album.

His collaboration with Shakira on the 2005 single "La Tortura" reached number one on several charts worldwide. He experimented with more diverse styles of music with the albums No Es lo Mismo (2003) and El Tren de los Momentos (2006), while his 2009 release, Paraíso Express served as a return to form for the musician. Sanz signed to Universal Music Group in 2011 and released his tenth studio album, La Música No Se Toca, in 2012, followed by Sirope in 2015.

Sanz was born on 18 December 1968, the youngest son of María Pizarro and Jesús Sánchez. He grew up in the neighborhood of Moratalaz in eastern Madrid. Sanz recalled that "Back then, kids grew up on the street...I was a bit like the group troubadour; the one who played the guitar and sang. That kept me out of a lot of trouble." Sanz's father, a door-to-door book salesman, played guitar professionally, which inspired seven-year-old Sanz to learn to play the instrument. He pursued the instrument with an intensity that eventually frustrated his mother, who broke his guitar one morning after his playing kept the family from sleeping.

He was exposed to traditional flamenco music as a child while vacationing each summer in his parents' native Andalusia in southern Spain. Originally, Sanz intended to become a flamenco performer, but he found the music teachers to be overly strict. Commenting on his early experiences, Sanz explained, "Flamenco can be very hard on beginners. If you lose the rhythm, they toss you out with, 'You're no good, boy!' They're very strict and very cruel. But it's also a marvelous education, because you either learn to play or else." He felt that he could not compete with his peers, and decided to focus on creating pop music with flamenco influences, viewing flamenco to be a "lifestyle" better suited to others.

As a teenager, Sanz performed in various venues in his hometown. He became acquainted with Miguel Ángel Arenas, a music industry executive who had signed several popular Spanish groups such as Mecano. Arenas helped Sanz find work, eventually leading to a record deal with the Spanish label Hispavox. In 1989 Sanz released his debut album, Los Chulos Son Pa' Cuidarlos under the name of Alejandro Magno (Spanish for "Alexander the Great"). The record, which fused techno and flamenco, was met with critical and commercial indifference, and today Sanz views the record to be "insignificant". However, the album is now considered to be a collector's item. In an attempt to promote Los Chulos Son Pa' Cuidarlos, he performed at strip clubs, playing short sets between acts. This proved to be unsuccessful and Sanz took a break from music, choosing to study business administration. He also took a job at a recording studio in which he wrote material for other artists. He persuaded Arenas to send demos of his songs to record companies, which led to being signed by Warner Music Latina. At this time, he began performing under his current name.

Sanz's rise to fame began in 1991, when he released his first album from Warner, Viviendo Deprisa. The record and the songs "Pisando Fuerte" and "Se le Apagó la Luz" helped him gain a dedicated fan base in Spain. In 1993, he released Si Tú Me Miras shortly followed by a live album, titled Básico. That same year, he recorded a song entitled "Mi Primera Canción" with flamenco pioneer Paco de Lucía, whom Sanz idolized as a child. He released his third studio album since changing his stage name, 3, in 1995. In addition to Spanish, 3 was also released in Italian and Portuguese. "La Fuerza del Corazón", the first single released from 3, was his first song to chart internationally. All three albums proved to be successful, reaching multi-platinum status in Spain.

Sanz spent two years in Milan, Italy to work on a follow-up for 3. For the album, he wished to create a "true fusion" of many different sounds, and began studying the saxophone and piano in addition to guitar. In 1997, Sanz released his fifth studio album, Más, a record containing ballads strongly influenced by flamenco, pop, and tropical rhythms. Driven by the singles "Corazón Partío", "Y, ¿Si Fuera Ella?", "Amiga Mía", "Aquello Que Me Diste", and "Siempre Es de Noche", Más sold more than two million copies in Spain and was certified 22× Platinum in the country, making it the best-selling album in Spanish history. The album remained on the Billboard Latin Albums chart for 74 weeks, and one year after the record's release, Sanz was granted an Ondas Award for Best Song for "Corazón Partío". According to David Cazares of the South Florida Sun-Sentinel, the album "made Sanz an international star on the strength of the pop-salsa hit 'Corazón Partío', a song on the lips of fans from Spain to Cuba and the United States." Following the success of the album, Sanz began touring in the United States for the first time.