And just as we expected, people were not impressed by K-Pez's attempts at comedy.
After flying in wearing a space suit, the singer remarked that her "pee bag is kind of full".
Unsurprisingly, this GROSSED viewers out and loads of angry peeps have blasted Katy via Twitter.
But the outrage didn't stop there!
Katy later came on stage carrying a fake baby and joked about how ~certain~ celebs have babies to boost their social media presence.
"My management told me I should have a fake baby to increase the publicity and have more followers," she joked.
Her cheap shot did not go over well with the viewers, including Ellen DeGeneres who was giving Katy some not-so-friendly looks from the audience.
Same Ellen, same!
We're sure Katy was just trying to have a LOL with the bb gag, but people were not pleased with the joke.
Hm, yeah. We're thinking Katy probz won't be asked to host an award ceremony again any time soon.