Katy Perry Criticizes Lady GaGa's 'Alejandro' Video

Katy Perry was reported  to have  slammed  Lady GaGa.

The "I Kissed a Girl" hitmaker started speculation after posting on Twitter, "Using blasphemy as entertainment is as cheap as a comedian telling a fart joke."

Though she did not mention GaGa's name on her post, people were quick to connect the tweet to the newly-premiered "Alejandro" music video  features Catholic imageries, a crucifix during a bed scene.

The two singers actually have number of things in common. Katy adores lesbianism in her claim-fame single "I Kissed a Girl" while GaGa celebrates gay love in "Alejandro".

In addition to that, they seem to have the same tastes when it comes to undergarments.

Katy chooses a pair of cannons that released frosting to the camera for her bra in "California Gurls" video, while GaGa chose rifles to supply her own.