Sinéad O'Connor
On 3 October 1992, O'Connor appeared on Saturday Night Live as a musical guest. She sang an a cappella version of Bob Marley's "War". She meant it as a protest against sexual abuse of children in the Catholic Church. She then showed a photo of Pope John Paul II to the camera while singing the word "evil", after which she ripped the photo into pieces and threw the pieces towards the camera. This happened nine years before John Paul II said that there was sexual abuse within the Church.