Ding! Ding! It is very much on between Miley Cyrus and Sinead O'Connor, who called out the Twerking pop star earlier today. Now Miles is responding in kind.
And then some. Hours after the Irish singer advised Miley to keep her clothes on and not let the music industry treat her as a prostitute, the 20-year old artist has fired back.
With Tweets invoking O'Connor's unstable history.
Prefacing her Re-Tweeting rampage, Miley wrote "Before Amanda Bynes… There was…" and then posted a screen shot of messages from O'Connor's very own account.
They included Tweets of Sinead asking for professional help (“does any1 know a psychiatrist in Dublin or wicklow who could urgently see my today please?”) and saying she "desperately need to get back on meds today."
The messages are from January 2012 during a time when O'Connor made it clear she was going through some pretty major psychological problems.
Many may question whether Cyrus is crossing a line here by mocking anyone's mental illness, especially considering the content of Sinead's message.
O'Connor's open letter to Miley Cyrus actually praised the young singer's talent and came down harder on the music industry than on Miley herself.
Check out Miley's screen grab of O'Connor Tweets below and decide:
Whose side are you on in this feud?
The best part of this response? It randomly brings Amanda Bynes into the feud - and you just KNOW that crazy young star won't sit idly by and let Miley compare her to Sinead O'Connor!
We look forward to Amanda's response in 3... 2... 1...
UPDATE: O'Connor has responded and gone off on Miley for actually making fun of someone's mental illness.