It's Katy Perry's world! The pop star is set to perform at the MTV VMAs and receive the network's iconic Video Vanguard Award ...

Katy Perry's album "143" is here following her "American Idol" departure. Here's why critics are calling her album "mindless" and "uninspired." ...

Katy Perry is emotionally marking the end of a tour era. On June 30, the popstar wrapped a four-show stint in Adelaide, Australia, which capped nearly four weeks of performing in the island country.