André George Previn KBE was a German-American pianist, composer, and conductor. His career had three major genres: Hollywood films, jazz, and classical music. In each he achieved success, and the latter two were part of his life until the end. In movies, he arranged and composed music. In jazz, he was a celebrated trio pianist, a piano-accompanist to singers of standards, and pianist-interpreter of songs from the "Great American Songbook". In classical music, he also performed as a pianist but gained television fame as a conductor, and during his last thirty years created his legacy as a composer of art music.

Previn was born in Berlin to a Jewish family, the second son and last of three children of Charlotte (née Epstein) and Jack Previn, who was a lawyer, judge, and music teacher born in Graudenz, then in Germany but now in Poland. The eldest son Steve Previn became a director. The year of Previn's birth is disputed. Whereas most published reports give 1929, Previn himself stated that 1930 was his birth year. All three children received piano lessons and Previn was the one who enjoyed them from the start and displayed the most talent. At six, he enrolled at the Berlin Conservatory. In 1938, Previn's father was told that his son was no longer welcome at the conservatory, despite André receiving a full scholarship in recognition of his abilities, on the grounds that he was Jewish.

Previn was married five times. His first marriage, in 1952, was to jazz singer Betty Bennett, with whom he had two daughters, Claudia Previn Stasny. and Alicia Previn. Previn divorced Bennett in 1957, a few months before she gave birth to Alicia.