Katheryn Elizabeth Hudson is Katy Perrys full name
That is crazy, I wonder why celebrities change their names like that.  She is a really good singer.  How many hits has she had?
shes had quite a few, katy perry is very popular
She is.  How many records has she put out?
Katy Perry
Katheryn Elizabeth Hudson (born October 25, 1984), known professionally as Katy Perry, is an American singer, songwriter, and television judge. After singing in church during her childhood, she pursued a career in gospel music as a teenager. Perry signed with Red Hill Records and released her debut studio album "Katy Hudson" under her birth name in 2001, which was commercially unsuccessful. She moved to Los Angeles the following year to venture into secular music after Red Hill ceased operations and she subsequently began
second studio album, entitled "Little Red". During an interview with "Clash", Katy was asked about why she had not included the song in the album's track listing. To that question, she responded: "I just felt that I wanted to put some music out there, really. Like, 'Aaliyah' from "Danger EP" is on the album, but I loved collaborating with Jessie Ware. But ["What Love Is Made Of"] means a lot to me [too]