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 ...

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 ...

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 ...

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 ...

Katy Perry has said that she feels “so proud” of Lady Gaga, after attending one of the singer’s shows in Mexico. The ‘E.T.’ singer was spotted by fans at the Estadio GNP Seguros venue in ...

Katy Perry, who recently attended Lady Gaga‘s concert at Estadio GNP Seguros in Mexico City, showered praise on Lady Gaga for her electrifying Viva la Mayhem performance. Accordingly, fans are ...

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In the morning, he left to record with another young singer he had discovered, Katy Perry ... subsequently claimed that Gottwald had raped Lady Gaga — which both Gottwald and Gaga insisted ...

All of this is to say, two of the biggest pop stars of their generation - Lady Gaga and Katy Perry - have recently released their first music in years, both hoping (dare we say, expecting ...

Late last night (November 3), Gaga took to social media to confirm ... A second CBS News report indicates that Katy Perry will perform at the Pittsburgh rally with the likes of Andra Day, D ...