Instagram/Ashlee Simpson TV Ashlee Simpson reflects on her infamous 2004 SNL lip-sync mishap, revealing how the once-humiliating moment shaped her career and personal growth. April 4, 2026 AceShowbiz - Ashlee Simpson has reflected on her infamous 2004 performance on Saturday Night Live, where a lip-sync mishap made headlines. More than two decades after the incident, the singer is now able to see the episode as a formative moment in her life and career. Recently crowned the winner of Season 14 of The Masked Singer as Galaxy Girl, Ashlee Simpson opened up about how the experience shaped her.