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 ...

Every single Beyoncé tour gains acclaim, without question. Her tour supporting Cowboy Carter has been no different, with the ...

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

On Sunday night, Katy Perry was spotted in the crowd at Lady Gaga‘s concert in Mexico City, a day after Perry’s performance there. Little Monsters spotted Perry at Estadio GNP Seguros as she ...

Katy Perry is singing the praises of fellow pop superstar Lady Gaga after catching her brand new tour. The "Firework" singer ...

By Hannah Dailey Katy Perry loves sharing her woman’s world with Lady Gaga. In the crowd at Mother Monster’s ¡Viva La Mayhem! concert in Mexico City Saturday (April 26), the “Firework ...

Katy Perry has gushed about fellow pop star Lady Gaga. The California Gurls hitmaker was spotted in the crowd at Gaga's ...

Lady Gaga came back to perform in Mexico City after a 13-year-long break, and Katy Perry was there to support her.

Over the top? Definitely. Moving? Surprisingly so. Gaga’s latest stadium concert confirmed that a star is reborn ...

Katy Perry's Lifetimes Tour is a high-flying, video game-inspired show, but online backlash has overshadowed the pop star’s ...