Katy Perry aka Katheryn Elizabeth Hudson (born October 25, 1984) turned 25 over the last weekend. The birthday party was perfectly planned. Everybody have to wear white because everybody was going to be painted. The party took place at The Sunset Beach nightspot in LA. Many other celebrities came to party including Taylor Swift, Julianne Hough and of course Katy’s boyfriend Russell Brand. Indeed it was really relaxed party.