Cool (West Side Story song) The Goodfeathers. The song is also parodied in the Flight of the Conchords episode The Tough Brets with the song "Stay Cool, Bret". The "Castle" episode "Cool Boys" has Richard Castle and Detective Slaughter sing it to distract some criminals hold them at gunpoint. British sketch show Horrible Histories parodied this song as a song about the English Civil War. 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
Stephen Sondheim told him he was working on a musical version of "Romeo and Juliet" with Leonard Bernstein, but they needed a lyricist; Betty Comden and Adolph Green, who were supposed to write the lyrics, were under contract in Hollywood. He said that although he was not a big fan of Sondheim's music, he enjoyed the lyrics from "Saturday Night" and he could audition for Bernstein. The following day, Sondheim met and played for Bernstein, who said he would let him know. The composer wanted to write music and lyrics; after consulting with Hammerstein, Bernstein told Sondheim he could write music later.