LOS ANGELES, April 21 -- Wendy's is putting down the Twitter spatula after taking heat for some fast-fried shade aimed at pop superstar (and now part-time astronaut) Katy Perry.

The burger chain, known for flipping patties and sass online, found itself grilled by Perry fans when it responded to news of her Blue Origin spaceflight with the zinger: "Can we send her back?"

That post - fired off after Pop Crave reported Perry had "returned from space" - didn't land well.

While it was likely meant as a cheeky jab, Perry's devoted fanbase didn't find it funny. The backlash was swift, fiery, and full of extra pickles.

Wendy's has since tried to cool things down, telling Entertainment Weekly and People, "We always bring a little spice to our ...