John Piermarini (born September 4, 1981), is a television Casting Director, Writer and Producer. He is known for his work casting top television shows for ABC, FOX and MTV. He also wrote, produced and directed for WWE (World Wrestling Entertainment) from 2009-2010. In 2007 John Piermarini published his first book, "What Guys Do Wrong", in which he interviewed 100 girls and compiled a "how to" guide to dating. Notable names interviewed for the book include Ashley Dupree (Eliot Spitzker's former call girl), Aubrey O'Day from pop group Danity Kane, Scheana Jancan (best known for being the girl responsible for breaking up John Mayer and Jenifer Aniston) and many other celebrities.