3 of 12
Miley Cyrus vs Sinead O'Connor
After Miley's eyebrow-raising 2013 VMAs performance and then "Wrecking Ball" video that she likened to Sinead O'Connor's "Nothing Compares To U" video, O'Connor advised Miley in an open letter online not to let the music industry prostitute her. Miley fired back by, basically, calling O'Connor crazy (and also taking a shot at Amanda Bynes). O'Connor threatened legal action, then Cyrus snarkily said she didn't have time to write O'Connor a letter because of "SNL" duties but offered to meet up with her.
O'Connor fired back with, "You can take five minutes today between g- string f***in' changes to publicly apologise and remove your abusive tweets. If you do not then you don't give a s*** who you mock and what damage you do by being so ignorant." OK, then.