- The Story: Robin was a '90s Canadian pop star named Robin Sparkles with the hit songs "Let's Go to the Mall" and "Sandcastles in the Sand," written about her ex-boyfriend Simon (played by James Van Der Beek). The group teases Robin mercilessly as they uncover more and more about her former life.
- Where We Left Off: The gang discovers that Robin Sparkles became Robin Daggers after her breakup with Simon, releasing the dark song that ended her career — "P.S. I Love You."
- Final-Season Status: In a flashback earlier this season, we see Robin encounter Simon in NYC when she's fresh off a breakup. When she discovers he married Louise Marsh, the girl he dumped her for long ago, she steals their wedding cake and eats it all.