When a spoiled pop star comes to Holt Neuro experiencing unusual symptoms, and a young girl at the Clinica exhibits similar symptoms on the same day, it forces both teams of doctors to try and piece together their common link. Singer/actress Christina Milian guest stars as the pop star, Shawnee, and Michael Beach ("ER") gust stars as Nicky, Shawnee's manager. Recurring guest star Eriq LaSalle directed this episode.