Hilary's hair isn't the only thing that's thriving. On Nov. 29, just eight months after giving birth to son Luca, the 25-year-old singer-actress tweeted a photo of her size 26 pants. "Yaaaa bitches!," she wrote. "@gabejohns your kickin my ass and its paying off! Skinny jeans! LETS GO!"
The Duffster sure seems happy and healthy to us. Whatever you're doing, Hil, keep it up!