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

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

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

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

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

The gigs — part of Gaga’s global Mayhem Ball tour — will happen July 28 and 29 and Aug. 1 and 2 behind her “Mayhem” LP, which ...

Katy Perry enjoyed an evening at Lady Gaga’s Mayhem Tour in Mexico City, praising the 14-time Grammy award winner on putting ...

Kevin Mazur/Getty Katy Perry joined in on the Viva La Mayhem fun! On Monday, April 28, the "Teenage Dream" singer shared pictures and videos from Lady Gaga's Sunday night concert in Mexico City at ...

Not even a brief mic issue could get in the way of Lady Gaga's iconic Weekend 2 set, which was arguably even more impressive ...

with the gothic dreams emanating from MAYHEM, her celebrated dark and avant-garde new album. Explore Explore Lady Gaga See latest videos, charts and news See latest videos, charts and news The pop ...

Lady Gaga starts off her international tour by reading an emotional letter to her fans, followed by the debut of 'Blade of Grass,' which she wrote for her fiancé, Michael Polansky. Katy Perry, who's ...

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