Sinéad O’Connor
After she performed the Bob Marley song “War,” Sinéad O’Connor created one of the most notorious SNL moments of all time. She basically started her own protest against the Catholic Church by changing the lyrics of the song to talk about child abuse.
Source: YouTube
She even tore up a photo of Pope John Paul II at the end of her performance. As she told the silent and shocked crowd to “fight the real enemy,” the camera just panned away. And guess what? Sinéad O’Connor was never invited back. How shocking. She was also edited out of repeats of the show.