Sports Illustrated Swimsuit model Brooks Nader exclusively told E! News about her frustration with sister Grace Ann Nader ...

After a quick wardrobe change, Katy and her team of athletic dancers performed a collection of well-acclaimed songs. "Woman's World" and "California Gurls" being ones to mention as Katy pranced around ...

Once the show finally started, it wasn’t a mere concert, but a high-concept experience meant to mimic an immersive video game ...

Katy Perry does not believe she's the "most hated person on the internet" and feels an incredible amount of love from her ...