Miley Cyrus Responds to Sinead O'Connor in Social Media Spat

Miley Cyrus fired back at "Nothing Compares 2U" singer Sinéad O'Connor on Twitter after O'Connor penned a lengthy and motherly open letter to the provocative 20-year-old.

In the letter, O'Connor claimed that Cyrus is being "prostituted" by the music industry and predicted the former Hannah Montana star would eventually land in rehab

Cyrus didn't take kindly to the advice. She responded with a tweet that poked fun at O'Connor's 2011 brush with mental health issues. The tweet says, "Before Amanda Bynes.... There was...." and links to O'Connor's old tweets. Cyrus followed up that tweet with a photo of O'Connor's memorable moment in which she tore up a photo of Pope John Paul II: Read more...