3.  Date of birth: 25 october 1984  Santa Barbara in california.

4.  Singer, songwriter, actress, Businesswoman and philanthropist Music style: pop-rock

5.  Perry has supported various charitable organizations and causes during her career. She has contributed to organizations aimed at improving the lives and welfare of children in particular. In April 2013, she joined UNICEF to assist children in Madagascar with education and nutrition.On December 3, 2013, she was officially named a UNICEF Goodwill Ambassador,

6.  AIDS LIFE  American Foundation for AIDS Research  DonorsChoose.org  Elton John AIDS Foundation  Generosity Water  GRAMMY Foundation  Habitat For Humanity  Keep-a-Breast  Make It Right  Mines Advisory Group  MusiCares  Music for Relief  Musicians on Call  Project Clean Water  Red Cross  Save The Music Foundation  Stand Up To Cancer  STOMP Out Bullying  The Art of Elysium  United Service Organization

7.  4 parfums :  Purr(2010)  Meow(2011)  Killer Queen(2013)  Royal revolution(2014)  3 wolrd tour  Hello katy tour(2009)  California dreams tour(2011)  Prismatic world tour(2014)