The Grammy winner was singing “Vanish Into You” when she slipped and “ate s–t bad” during the Las Vegas concert over the ...

Katy Perry loves sharing her woman’s world with Lady Gaga. In the crowd at Mother Monster’s ¡Viva La Mayhem! concert in Mexico City Saturday (April 26), the “Firework” singer was one of ...

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 ...

Katy Perry brought her Lifetimes Tour to PHX Arena on July 12. It was a sci-fi fever dream with "Roar," "Firework," "I Kissed a Girl" and more hits.

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 Estadio GNP Seguros.

Katy Perry shares sweet message to Lady Gaga after attending ¡VIVA LA MAYHEM! in Mexico tonight 🇲🇽 "Show was MAGNIFICA! The dress! The sand! Every moment was theee moment. So proud of you ...

Lady Gaga was the latest artist to experience an onstage glitch. The actress and singer has been on tour over the past weeks, ...

The Complete Collection, which earned five #1 singles on the music charts, is climbing up the charts once more.

Lady Gaga's fans had their heart in their mouths after the pop star had a scary blunder while she was performing in Las Vegas ...