Katy Perry supported Lady Gaga at her Mexico City concert on Sunday, April 27, days after Perry launched her Lifetimes Tour.

The Little Monster-KatyCat stan wars can stop: these pop divas are friends! On Sunday night, Katy Perry was spotted in the ...

Katy Perry has revealed why she hasn't been able to perform at her best after kicking off her "Lifetimes" tour on Wednesday ...

Katy Perry's first concert since her Blue Origin mission included space-inspired dance moves. The singer-songwriter also ...

Katy Perry has gushed about fellow pop star Lady Gaga. In addition to her kind words, the Last Friday Night singer shared a ...

At her most recent Lifetimes Tour show, Katy Perry shared an "emotional" moment with her fans in the wake of the heavy ...

Katy Perry is being roasted by fans over her bizarre space-inspired outfit from her Lifetimes Tour. The singer, 40, rocked ...

Katy Perry launched her highly anticipated Lifetimes Tour in Mexico City with a spectacle of interstellar theatrics, ...

Katy Perry's "Lifetimes" tour has officially blasted off, and it’s nothing short of intergalactic -- 'cause she was straight ...

When Katy Perry announced her Lifetimes Tour, she revealed to Rolling Stone that she'd include a section featuring the ...

Houston, we have liftoff. Just 10 days after making headlines for her trip to space, Katy Perry kicked off her highly ...

Katy Perry loves sharing her woman's world with Lady Gaga. In the crowd at Mother Monster's ¡Viva La Mayhem! concert in ...