Cool (West Side Story song) Cool (West Side Story song) "Cool" is a song from the musical "West Side Story". Leonard Bernstein composed the music and Stephen Sondheim wrote the lyrics. This song is known for its fugal treatment of a jazz figure, described by one writer as "possibly the most complex instrumental music heard on Broadway to date". In 2011, actor Harry Shum Jr. performed the song, as his character Mike Chang from TV series "Glee", in the third episode of season 3, "Asian F" (aired on October 4). An episode of "Animaniacs" features a parody version as "Coo Bird" sung by Bobby of
Stephen Sondheim needed money for rent. The network disliked the title and Sondheim's alternative, "A Little Night Music". After Sondheim finished "Evening Primrose", Jerome Robbins asked him to adapt Bertolt Brecht's "The Measures Taken" despite the composer's general dislike of Brecht's work. Robbins wanted to adapt another Brecht play, "The Exception and the Rule", and asked John Guare to adapt the book. Leonard Bernstein had not written for the stage in some time, and his contract as conductor of the New York Philharmonic was ending. Sondheim was invited to Robbins' house in the hope that Guare would convince him to write the