Iggy Azalea matched her hair to her bikini in a Sunday, July 26, Instagram photo of her post-baby body.“Baby weight. Baby? Wait — this a baby waist,” the rapper, 30, captioned the social media upload.The photo came one month after the Aussie revealed she had welcomed “a son.” Azalea wrote via Instagram in June: “I kept waiting for the right time to say something but it feels like the more time passes the more I realize I’m always going to feel anxious to share news that giant with the world.