Katy Perry has successfully appealed against a trademark decision over her name, against Australian fashion designer Katie ...

Pop star Katy Perry successfully overturned a trademark decision barring her from using her own name to sell merchandise in ...

Luke Bryan shares the adorable nickname Katy Perry's 4-year-old daughter Daisy calls him. Bryan and Perry became good friends ...

American Idol's Luke Bryan exclusively told E! News that he acts as "Uncle Luke" to Katy Perry and Orlando Bloom's 3-year-old ...

The judges determined that Perry had used her name as a trademark for five years before Taylor began her clothing business.

Katy Perry attended Sabrina Carpenter’s Short n’ Sweet tour stop in Los Angeles, wearing a very fitting "short and sweet" ...

During the show, Carpenter “arrested” Marcello Hernández’s viral Saturday Night Live persona Domingo for being too hot.

Katy Perry and John Mayer, who dated on and off from 2013 to 2015, were spotted chatting at a Sabrina Carpenter concert in ...

But rather than taking her partner, Orlando Bloom, Katy took two rarely seen family members, sharing a photo of their family ...

Katy Perry has won her yearslong legal battle with an Australian designer. The verdict was delivered in an Australian court ...

Singer Katy Perry has successfully appealed against a trademark decision over her name, after being sued by an Australian ...