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 ...

Lady Gaga’s Mexico concerts were a dream come true moment for her fans!After performing two spectacular Viva La Mayhem ...

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 ...

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 ...

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

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 ...

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

Lady Gaga announced a second show at Melbourne’s Marvel Stadium, bringing her to four Australian shows on the Mayhem Ball ...

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

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