Bruno Mars breaks his tie with Rihanna and Katy Perry as "I Just Might" rises to No. 1 on Billboard's Pop Airplay chart, ...

In 2006, years before she became one of the biggest stars on the planet, Katy Perry found herself a gig with nu metal ...

A court loss, then online fury: Katy Perry faces backlash after a trademark defeat and a controversial fan reply.

The pop star and the former Canadian prime minister went Instagram official in December ...

Katy Perry and Justin Trudeau have been "determined" to make their long-distance relationship work. The 41-year-old pop star ...

Australian fashion designer Katie Perry had always dreamed of starting her own clothing brand. She never imagined a global ...

Pop star Katy Perry has lost a legal showdown with another woman who almost shares her name, ending a long-running battle ...

A behind-the-scenes video from Katy Perry's music video for her single Watch It Burn has garnered millions of views on social ...

Katy Perry has lost a 17-year legal battle against the Australian fashion designer Katie Perry. An Australian high court ...

Australian designer Katie Perry has won a trademark case against US pop star Katy Perry after a 16-year-long legal battle.

Add Yahoo as a preferred source to see more of our stories on Google. Alex Warren didn't win a Grammy, but now he's nominated at The Snappy Awards, the first awards show honoring Snapchat creators.

Katy Perry gave a rare glimpse inside her career hiatus, as she bonded with boyfriend Justin Trudeau and daughter Daisy Dove.