Miley Cyrus has slammed Donald Trump for his recent post comparing the appearance of his political rival's wife to his own.

The Republican Presidential candidate goaded fellow White House hopeful Ted Cruz by retweeting a photo on Thursday (24Mar16) that compares Heidi Cruz with Trump's own wife, Melania. The text on the photo reads, "No need to 'spill the beans' the images are worth a thousand words."

Trump has been threatening to "spill the beans" on Cruz's wife on social media, but has given no indication as to what his revelations are about.

Now, Miley has waded into the political fray, and called the controversial billionaire entrepreneur out for being sexist.

Posting a screenshot of an article about Trump and the image he retweeted, she wrote on Friday (25Mar16), "Trump can't stop won't stop saying stupid a** sexist s**t!!!! Comparing two women! Are you f**king kidding! We will not allow you to destroy everything we have overcome as women! I feel as though we are stronger than ever as a unit.

"We have an understanding and respect for one another (more than Trump can say about anyone, his fellow candidates, other races and religions, other public figures, just HUMAN BEINGS (sic) in general, and of course animals! Check out his family hunting photos!!!!)

"It's absolute insanity that this has gone on this long and far! Wake me up from this nightmare someone PLEASE!"

This isn't the first time that Miley, who was recently announced as a new judge on the next series of The Voice, has criticized Trump. Earlier this month (Mar16), she posted a photo on Instagram of the Republican candidate's two sons with the dead carcass of a leopard they had shot on a hunting trip. She captioned the shot, "F**k u."