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

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

Katy Perry was spotted in the crowd watching Lady Gaga in Mexico City after her own tour was hit with disaster as she was ...

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

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

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

American singer, songwriter, and TV personality Katy Perry launched into space on a Blue Origin rocket and returned to Earth ...

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

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

Katy Perry took a break from her own tour to show some love for Lady Gaga during a packed concert in Mexico City over the ...