The show: "Newlyweds: Nick and Jessica," a reality show following the marriage of C-list celebrities Jessica Simpson, whose attempts at a pop singing career were thwarted by peers Britney Spears and Christina Aguilera, and Nick Lachey, whose attempts at a boy band career with 98 Degrees were thwarted by contemporaries 'NSync and the Backstreet Boys. The breakup: June 30, 2006, 15 months after the show ended. How the show hurt them: Simpson's dumb blond charm on the show catapulted her back into the limelight, scoring her commercial deals and a renewed chance at a singing career. Was Lachey jealous or did his bride, and her newfound fame, outgrow being tied down? Whatever the case, four seasons of "Newlyweds" is likely to blame.