Neil Sedaka and Neil Simon are two prominent figures in the entertainment industry. Neil Sedaka is a singer-songwriter who has written and performed many popular songs, such as 'Breaking Up Is Hard to Do' and 'Calendar Girl'. Neil Simon is a playwright and screenwriter who wrote plays such as The Odd Couple and Barefoot in the Park. Both men have had successful careers in the entertainment industry and have been inducted into the Songwriters Hall of Fame.