Leonard Bernstein (1918–1990) was an American conductor, composer, pianist, music educator, and humanitarian. One of the most prodigiously talented and successful musicians in American history, he was the first American-born conductor to receive international acclaim. Bernstein served as Music Director of the New York Philharmonic and conducted the world's major orchestras. As a composer, he created works ranging from the Broadway musical West Side Story to symphonies, choral works, and film scores. He was also a passionate educator, known for his televised Young People's Concerts.