She was born in Warsaw on 23 April 1979. Her father, hotelier Steven Krupa brought the family to America when Joanna was five. She first became successful as a model, gracing the covers of magazines like FHM, Inside Sport and Steppin' Out. Maxim magazine named her the Sexiest Swimsuit Model In The World at one time.
She then began winning small acting parts in movies like Legally Blonde and Planet Of The Apes, before securing more substantial roles in TV shows like The Man Show and movies like Max Havoc: Curse Of The Dragon. Since her $1 million wedding to nightclub owner and businessman Romain Zago, Joanne has become a paparazzi favourite as one of the beautiful and rich socialite set. She has become a strong advocate for PETA, modelling nude three times in high profile ad campaigns for the animal rights charity.