Did Katy Perry Dis Lady Gaga's 'Alejandro' Video?

'Using blasphemy as entertainment is as cheap as a comedian telling a fart joke,' singer tweeted.

She liked kissing a girl, but one thing Katy Perry doesn't take kindly to? Blasphemy.

Katy Perry posted a message on her Twitter page Tuesday that appears to be a direct stab at Lady Gaga's just-debuted "Alejandro" video and its Madonna-like use of religious imagery.

"Using blasphemy as entertainment is as cheap as a comedian telling a fart joke," Perry tweeted.

Gaga's music video — which seems to reference a number of Madonna videos, including "Vogue" and "Like a Prayer" — shows the singer dressed in a red-latex nun's habit and sucking on rosary beads, and a crucifix appears during a same-sex orgy. There are also clips of flames in the background during one of the dance scenes, reminiscent of when Madonna sang among a field of flaming crosses in her "Like a Prayer" video, which sparked controversy when it was first released.

While Perry has had her own controversial moments — including breakout single "I Kissed a Girl" and a sneak peek of her "California Gurls" video that features a cupcake bra that sprays frosting — she got her start in the Christian-music world and both her parents are pastors.

"I was raised in a very pseudo-strict religious household where the only thing on the menu was [gospel standards like] 'Oh Happy Day,' 'His Eye Is on the Sparrow' and 'Amazing Grace' ... all eight verses of it," Perry told MTV News back in 2008. "So the New Kids on the Block are new to me now; they're not a comeback. I'm like, 'Oh, this is a cool song!' I missed out on a couple other things, but I'm catching up."

What do you think of Katy's tweet? Share your thoughts in the comments.