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 ...

Fans of Katy Perry and Lady Gaga are describing it as 'Roar vs Applause' all over again. The two fan-favorite singers released their respective singles in August 2013, igniting a notable pop ...

On Sunday night, Katy Perry was spotted in the crowd at Lady Gaga‘s concert in Mexico City, a day after Perry’s performance there. Little Monsters spotted Perry at Estadio GNP Seguros as she ...

Katy Perry is singing the praises of fellow pop superstar Lady Gaga after catching her brand new tour. The "Firework" singer took to her Instagram Stories on Monday (April 28) to share some of the ...

Katy Perry is bringing her Lifetimes Tour to the U.S. Wednesday, kicking off in Houston at the Toyota Center — and fans will ...

Katy Perry and Lady Gaga. Friends? Rivals? Maybe the only time these pop divas have been mentioned in the same sentence recently is when Perry went to see Gaga’s Mexico City concert in April.

Selena Gomez, Ariana Grande, Lady Gaga and Kendrick Lamar each scored a leading four nominations each for the Nickelodeon Kids’ Choice Awards, while Jack Black, Dwayne Johnson and Jelly Roll collected ...

Lady Gaga made a surprise announcement yesterday ... online users pointed out that some fans immediately started to resell their Katy Perry tickets. "The CDMX arena has just a little over ...