Katy Perry is a pop American singer first single ":I kissed A girl and I liked it"
That was a great song with a pretty catchy beat. She is very attractive as well.
Teenage Dream was her Third album 
I think that her fourth album Prism was probably the best,
She first signed with red hill records
She is a really good singer and an even better actress.
she sang gospel and in church
I never knew that she sang gospel, that is pretty interesting considering her lifestyle.
Katty Perry is only her stage name