Credit: Larry Busacca/Getty Images for MTV; Getty Images

UPDATE (October 15, 2013, 8:11 a.m. PT):

There’s another one! Sinéad O'Connor has written a fifth letter to Miley Cyrus. In the note, Sinéad tells Miley they do not need to “kiss” and make up; Miley just needs to apologize. Her kind of “bullying causes suicides,” writes Sinéad.

She adds, “People die every day because of the type of thing you did. Its [stet] not that hard to say sorry. Doing so will save lives.” Miley has not publicly responded to this latest letter.

UPDATE (October 8, 2013, 8:59 p.m. PT):

Sinéad O'Connor published yet another letter address to Miley Cyrus. This one references Miley’s October 7 appearance on the Today Show. In the letter, Sinéad calls for the 20-year-old to make a formal apology to both herself and Amanda Bynes “for having perpetuated abuse of [stet] both of us.”

She also suggests Miley email her at the same address (Iamwonderful@me.com) that appeared in the messages Miley retweeted when this whole thing began last week. Read the new letter for yourself on either Sinéad’s Facebook or website.

UPDATE (October 4, 2013, 8:05 a.m. PT):

Sinéad O'Connor has posted another open letter to Miley Cyrus concerning the 20-year-old’s tweets referencing Sinéad and Amanda Bynes’s respective struggles with mental illness.

In the letter, posted on Sinéad’s Facebook, the Irish singer wrote: “You have posted today tweets of mine which are two years old, which were posted by me when I was unwell and seeking help so as to make them look like they are recent. In doing so you mock myself and Amanda Bynes for having suffered with mental health issues and for having sought help.” In a shorter message posted an hour later, Sinéad wrote: “Ms Cyrus' lawyers will be contacted by mine regarding this matter.” 

Then, earlier today, Sinéad wrote a third letter in which she said “I have no interest whatsoever in meeting you” and told Miley “to publicly apologise and remove your abusive tweets.”

Details to come as this story develops.

UPDATE (October 3, 2013, 5:06 p.m. PT):

Later the same day, Miley Cyrus addressed two tweets to Sinéad. The first: “Sinead. I don't have time to write you an open letter cause Im hosting & performing on SNL this week.” The second: “So if youd like to meet up and talk lemme know in your next letter. :)” Think Sinéad will take her up on the slightly snarky offer?

ORIGINAL STORY:

Miley Cyrus’s “Wrecking Ball” music video has had its fair share of comparisons to Irish singer Sinéad O'Connor’s equally stark, much less naked 1990 video “Nothing Compares 2 U.”

It would seem, however, that Sinéad isn’t exactly fond of the similarities. The 46-year-old Irish singer recently published an open letter to Miley and in 1,000-plus words expresses her worries for the 20-year-old pop princess.

 “I am extremely concerned for you that those around you have led you to believe, or encouraged you in your own belief, that it is in any way ‘cool’ to be naked and licking sledgehammers in your videos,” she writes. “It is in fact the case that you will obscure your talent by allowing yourself to be pimped, whether its the music business or yourself doing the pimping.”

Sinéad continues that if Miley wants to, as she’s repeatedly said, shed her “Hannah Montana image” for once and for all then “whoever is telling you getting naked is the way to do that does absolutely NOT respect your talent, or you as a young lady.”

Credit: Miley Cyrus on Twitter

Miley, for her part, hasn’t taken kindly to the advice. In an October 3 tweet, Miley wrote, “Before Amanda Bynes.... There was....” followed by a photo of Sinéad’s own tweets calling for a psychiatrist who could “get me back on my meds.”

Later, Miley shared the infamous photo of Sinéad ripping a photo of the Pope in half during Saturday Night Live (an event that happened more than a month before Miley was even born). Miley herself will be hosting and performing on the October 5 episode of SNL; should we expect a reenactment of the highly controversial act?

If Miley does end up mimicking Sinéad on the sketch show, it might just add fuel to what appears to be an already flammable situation. Are we looking at the next music industry feud?

What do you think? Should Miley listen to Sinéad or is this all just some kind of publicity stunt? Sound off in the comments below.

SourcesSinéad O'ConnorMiley Cyrus on Twitter, Sinéad O'Connor on Facebook

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!