So apparently Lady Gaga introduced another alter ego Yuyi, a mermaid, on a TV show in France the other day and that Yuyi would be in her next music video.  Katy Perry tweeted a picture of her planking in a mermaid costume on her new upcoming music video as well.

Here's Lady Gaga and her mermaid alter Yuyi

 

So there truly isn't a "fued" but fans all over the world are making it out that way.   There is always room for mermaids in the world, but just to remind everyone, Madonna, is in the lead with the creepy mermaid fad, she did have a weird mermaid moment in her Cherish video.