Alessandra Ambrosio: Bump & Grinds At Pre-Carnival Party

Alessandra Ambrosio danced the night away at the Hotel Unique in Sao Paulo, Brazil on Saturday night (February 11). The pregnant Victoria's Secret model was the center of attention in her shimmery dress at Vogue's annual pre-Carnival party.

She and Jamie Mazur - who are already parents to 3 1/2-year-old Anja - are expecting their second child in four months.

Before she walked down the catwalk back in November for the televised Victoria's Secret fashion show - she hid her pregnancy at first.

I didn't tell anybody so no one knew at the show that I was pregnant. A week before, I told my booker I don't think I'm going to be able to fit into the clothes because I gained a few pounds already, but we were just quiet. I cut all the sugars and sweets 10 days before and I got my trainer -- the one I usually get -- and we were doing lots of glutes and arms and back exercises."