Iggy Azalea, 30, shocked many people when she announced the birth of her son Onyx in an Instagram post on June 10 and now we’re learning she took her private pregnancy idea from Kylie Jenner‘s pregnancy with her now two-year-old daughter Stormi! “Iggy saw how Kylie was able to totally hide her pregnancy and that kind of gave her the inspiration to try to do it too,” a source EXCLUSIVELY told HollywoodLife. “She figured if Kylie could pull it off she could too.”