Warped Tour she started with, but there were many other performers with her the real first one should be HELLO KATY You can find extra information from wikipedia...
But shortly the answer is this:
Start date January 23, 2009End dateNovember 28, 2009
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Katy Perry was born in Santa Barbara, California.
Alexandra ! He was one of katy's homtown friends Isnt Alexandra a girls name?!!!!!!!!!!!!!
3 is her favourite number!miley's fav no. is 10!! xhope this helped ya !
lady gagas is stefani germanotta. rihannas is robyn rihanna fenty and katy perrys is katy hudson (birth name. her name is now Brand because she is married to russel
Katy Perry's mom is named Mary Perry Hudson. Her father is Keith Perry. They are preachers in California.