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

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

Lady Gaga unleashed her divine chaos in Mexico City, where on Saturday night (April 26) she held her first concert in 13 ...

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

Lady Gaga has announced several new California "Mayhem Ball" tour dates. Find out how to snag the cheapest available tickets ...

Want to snag the cheapest available seats to the new tour dates? You can get early ticket deals to the San Francisco concerts ...

After stealing the show at Coachella, Lady Gaga is bringing her Mayhem Ball tour to San Francisco's Chase Center.

A few days after headlining the stage at the Coachella Music Festival, Lady Gaga announced she is bringing her Mayhem Ball ...

Paws up, little monsters! Lady Gaga is throwing the Mayhem Ball Tour this summer. The pop icon will kick off the tour in Las ...

Lady Gaga electrified fans last night at Estadio GNP Seguros in Mexico City, wrapping the first of two back-to-back sold-out stadium shows. Fresh off her widely praised headline performances at ...

The sold-out shows took place at the Estadio GNP Seguros stadium in Mexico City on Saturday, 26, and Sunday, 27 April. The ...

Following her critically acclaimed performances at Coachella, the superstar kicked off her 58-date headline outing at the ...