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

Katy Perry has hit back at "unhinged" haters who have been criticizing ... On Sunday night, Katy took a break from her own ...

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

Katy Perry wore a spacesuit costume while performing days after her Blue Origin space flight. It immediately backfired on her ...