Dia Dipasupil/Getty Images Before The Life of a Showgirl was ever a glimmer in Taylor Swift's eye, the singer peppered her music with references to classic literature. As early as 2006, Swift included a nod to Robert Frost's poem "The Road Not Taken" in the song "The Outside" from her self-titled debut album. "I tried to take the road less traveled by," she sang. "But nothing seems to work the first few times, am I right?" The lines were the first of many literary references to come, with Swift later folding in allusions to works by authors including Charles Dickens and Nathaniel Hawthorne.