Sinead O' Connor calls Kim Kardashian a 'c---' over Rolling Stone cover

We've got a feeling that Sinead O'Connor isn't really digging Kim Kardashian's recent appearance on the cover of Rolling Stone.

In fact, we know she hates it! The outspoken star went on a massive smack down of Kim, calling her the word that starts with c and rhymes with punt.

Sinead, 48, even wrote on her ranty Facebook post that we should all boycott Rolling Stone magazine now as "music has officially died". Not dramatic at all.

"What is this c--- doing on the cover of Rolling Stone?" she wrote."Music has officially died. Who knew it would be Rolling Stone that murdered it?

"Simon Cowell and Louis Walsh can no longer be expected to take all the blame. Bob Dylan must be f****** horrified. #‎BoycottRollingStone."

Let's remember the days when music wasn't dead, like this 90s trio of Sinead, Kylie Minogue and Natalie Imbruglia. Eeek.

Now we get what Sinead is saying – Rolling Stone covers have always been an iconic nod to musos who are doing the biz.

But at the same time, Kim, 34, looks incredible and she sells. And for those who don't know, the mag has been in decline for a while.

And busting out as a sexy sailor, we're assuming Kim gave those selling figures a bit of buoyancy.