It's been going on for long enough.
Katy Perry is arguably one of the coolest women in showbusiness.
She's got great style, produces music that continually tops the charts and still stays humble and sticks to her roots.
Recently, she did something extremely sound for one of her fans, Tony Marrero who is a survivor of the Pulse massacre in Orlando.
She appeared on The Ellen Show to meet him and offered to pay for his first year of college tuition. What a great gal.
Today, however, she is hitting headlines once again as she gave one interesting answer as part of a Twitter Q&A last night.
Unless you've been living under a rock the last few months, you'll know that Taylor Swift is nobody's favourite person at the moment.
Having feuded with Kanye and Kim to a rocky breakup with Calvin Harris, it's safe to say she's been laying low. One old feud that looks like it's certainly still in motion is between her and Katy Perry.
Katy was answering fan's questions on Twitter, one of which being "will you collab with Taylor Swift" but what's surprising is her answer.
Katy doesn't look to be taking ANY of the blame for the love lost between her and Taylor as she replied with a curt "if she says sorry, sure!"
Just another person for Taylor to apologise to perhaps? I'm sure she's got a pretty long list by now...
