Kylie Minogue is trying to stop Kylie Jenner from using "Kylie" as a trademark in America.

And the singer's lawyers aren't pulling any punches.

They've filed documents describing the Keeping up with the Kardashians star as a "secondary reality television personality" who participates in "photo exhibitionism".

They also say giving Kylie J the trademark could damage Kylie M and her other trademarks.

The legal papers from KDB refer to her as a "home-schooled graduate," saying her "photographic exhibitionism and controversial posts have drawn criticism from, for example, the disability rights and African-American communities".

That could be referring to when Kylie J posed in a wheelchair for Interview magazine - or the criticism she got last year after posting Instagram snaps of her cornrow hairstyle.

KDB uses very different words to describe the singer though - calling her an "internationally renowned performing artist, humanitarian, and breast cancer activist".

The document also lists a number of US trademarks the Aussie already has for variations of her name - which cover clothing, entertainment, music, cosmetics and more.

Apparently, Kylie M also registered her website address, kylie.com, in 1996 - before Kylie Jenner was even born.

It's going to be an interesting fight. Because while Kylie M is still a star in the UK, she's never been that big in the States - and Kylie J is by far the more famous over there.

Although Kylie J doesn't have her "Kylie" trademark yet, it looks like she's has been using the name for her own beauty products.

The singer's fans are backing Kylie M's claim, tweeting #TheresOnlyOneKylie.

Others claim there can only be one Kylie - Kylie M - because they don't even known who Jenner is.

There's no word yet on what Kylie J - or indeed her lawyers - think about all this.

For more stories like this one you can now download the BBC Newsbeat app straight to your device. For iPhone go here. For Android go here.