Lady Gaga and Katy Perry attend the Academy Museum of Motion Pictures: Opening Gala honoring Haile Gerima and Sophia Loren, ...

Katy Perry and Lady Gaga just reignited the “Roar” vs. “Applause” debate that had lay dormant for more than a decade. The two ...

But before she does, we talk to her about Gaga, her daughter Daisy and how she's bringing us to her planet on the Lifetimes ...

Katy Perry is ... stupid love by lady gaga," a sixth commented. The release of Woman's World has been facing much controversy lately, as it has been confirmed that Perry collaborated with ...

Katy Perry is about to hit the road with her ‘Lifetimes’ Tour after nearly 8 years, and the pop star shares what her fans can ...