Haven Gillespie was an American songwriter born on February 11, 1887, in New York City. He is best known for his contributions to popular music in the early 20th century, particularly in the genres of jazz and pop. Gillespie wrote numerous songs that became hits, collaborating with various artists and musicians throughout his career. One of his most famous works is the song "Santa Claus Is Coming to Town," which has become a holiday classic. Gillespie's influence on American music is significant, as his compositions continue to be performed and enjoyed by audiences around the world. He passed away on March 14, 1975.