"The Apprentice" is moving from glitzy Fifth Avenue to neon-lit Broadway. Reality superproducer Mark Burnett and Donald Trump, executive producers of NBC's reality hit, are developing "The Apprentice: The Musical." Burnett is writing the book for the musical, which is under way, with several songs already written. "It's a love story," Burnett said of the project at a Friday meeting to promote his upcoming NBC reality series "The Contender." "It's very inspirational."