Rihanna's performance of 'Diamonds' this past Saturday has angered an internet subculture of "Seapunk" artists, whose style she (along with Azealia Banks, who is also catching some heat) essentially jacked.

Unfortunately for Rihanna, you can't really do anything that upsets anybody without somebody making a Tumblr (and in this instance a Facebook page) by which to mock you. That is exactly what's happened. But before we get to that, the video that sparked it all:

And here is a video by one of the artists who has clearly been ripped off:

Now there is a Tumblr called No Seapunk Rihanna Copyright (and a Facebook page by the same name) to call Ri-Ri to task. Here are some of their offerings:

NoSeapunkRihannaCopyright.Tumblr.Com
NoSeapunkRihannaCopyright.Tumblr.Com
NoSeapunkRihannaCopyright.Tumblr.Com
Facebook.com/NoSeapunkRihannaCopyright
Facebook.com/NoSeapunkRihannaCopyright