Alessandra Ambrosio
Credit: Gregg DeGuire/WireImage

Happy birthday, Alessandra Ambrosio! Although the model, who turns 34 today, is known for strutting down runways at high-profile shows, the Brazilian beauty has been keeping busy off the runway as well. With the launch of her boho-chic clothing line, acting as the face of Schutz, and inspiring us to hit incorporate more crunches to our fitness routine, Ambrosio is undoubtedly a savvy businesswoman. We can't wait to see what's next!