Katheryn Elizabeth Hudson, better known by her stage name, Katy Perry, (born on October 25, 1984) is an American pop singer-songwriter and actress who is one of Taylor Swift's friends. Perry has mentioned it during interviews, and they have been seen hanging in public.
In addition to being a friend of Taylor's, Perry has acheived success herself with three platnuim-selling albums, 2008's One of the Boys, 2010's Teenage Dream, and 2013's Prism. Her numorous hits include "I Kissed A Girl", "California Gurls", "Part of Me", "Wide Awake", and "Roar".
On April 15, 2010, at a Taylor Swift concert in Los Angeles, at the Staples Center, Taylor surprised her audience by having Perry rise from the stage to join her to sing “Hot N Cold”.
Perry, who was previously married to British comedian and actor Russell Brand, was in an on-off relationship with one of Taylor's ex-boyfriends, singer-songwriter John Mayer, for over a year until February 2014. They even did a song together called "Who You Love" for his 2013 album, Paradise Valley.
- Gallery - A gallery of photos featuring Katy Perry.