1 Leonard Bernstein(Composer Whose Best-Known Work is the Broadway Musical 'West Side Story')
Leonard Bernstein was an American composer, music educator, conductor, pianist, author, and humanitarian. One of the most important cultural personalities of 20th century America, Bernstein influenced many generations of musicians. He is also credited with mentoring famous conductors like John Mauceri, Herbert Blomstedt, Alexander Frey, Marin Alsop, and Edo de Waart among many others.