Katy Perry is in on the joke. The pop star poked fun at the backlash she has received in recent months as she celebrated a ...

Katy Perry performed a sold-out show at Madison Square Garden in New York City on Monday, Aug. 11, and celebrated with a ...

Katy Perry fans have been channeling some of the singer's most iconic looks while attending her Lifetimes Tour. The concert ...

"Into orbit and back? She's, like, floating?" Mariah Carey asked about Katy Perry. "And this is true? Wow. All right, Katy." ...

Katy Perry went to space in April and has had a terrible year. Mariah Carey is learning from Perry. She's staying away from space voyage.

Unlike Katy Perry, Mariah Carey says you won't catch her in space anytime soon. The iconic singer, who is currently on the ...