Rather than just sit there confused like the rest of us, Sinead O’Connor decided to pen an open letter to Miley Cyrus after seeing her Wrecking Ball video. “The music business doesn’t give a s*** about you,” she warned the fallen Disney star, expressing concern for her future. While she was trying to be helpful, Miley fired back by making fun of O’Connor’s mental health issues and comparing her to Amanda Bynes. Back and forth they went, publically exchanging letters and tweets instead of just picking up a phone. Today, O’Connor is more grateful rather than bitter, since she now feels the feud helped start a conversation about mental illness.