• Katy’s real name is Katheryn Elizabeth Hudson.
  • Katy used to be a Christian singer, now she is a pop singer.
  • Perry is her mother’s maiden name.
  • Katy changed her name to Perry, to avoid confusion with actress Kate Hudson.
  • Katy got married to Russel Brand in October 2010.
  • She released her perfume ‘Purr’ in November 2010. It is now available worldwide.
  • Katy calls her fans ‘KatyCats’.
  • Katy is the first artist in the history of the Billboard Hot 100 to remain in the top 10 for a full year with her hits “California Gurls” (featuring Snoop Dogg), “Teenage Dream,” “Firework” and “E.T.” (featuring Kanye West)