Looks like the bad blood between these two Hollywood hitmakers continues!

The ongoing feud between Katy Perry and Taylor Swift has once again intensified following the "Firework" singer's release of her new perfume titled "Mad Love."

RELATED: Calvin Harris Deletes Taylor Swift From His Social Media After She's Spotted Kissing Tom Hiddleston

According to sources, Tay's award-winning song "Bad Blood" was originally called "Mad Love" — so fans obviously saw this as a direct dig towards the pop princess.

katy perry kohls
Kohls

But given that Katy's last scent was named "Mad Potion," it's likely that this is all just one major coincidence — though we doubt Swifties see it that way.

Although she's never mentioned Katy by name, Taylor opened up about her feud with an anonymous artist in 2014.

taylor swift katy perry getty images

"For years, I was never sure if we were friends or not. She would come up to me at awards shows and say something and walk away, and I would think, 'Are we friends, or did she just give me the harshest insult of my life?'" the 26-year-old recalled.

At one point, Katy, 31, seemingly responded to the blonde beauty's remarks, tweeting, "Watch out for the Regina George in sheep's clothing…"

RELATED: Are Jennifer Garner and Ben Affleck Back Together Amid Their Divorce?!

Can't we all just get along?! Scroll through the gallery below for more of Tinseltown's biggest squabbles!