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Alessandra Ambrosio's little ones [2] know how to put on a show. The supermodel posted a video of her kids singing "Happy Birthday" and we are not sure we've seen anything cuter this week.

Alessandra turned 36 years old on April 11 and celebrated with friends and family [3]. In the video, the Brazilian beauty's daughter, Anja is so into singing "Parabéns a Voce," "Happy Birthday" in Portuguese, she ends up getting on her chair to dance while belting out the tune. Her little brother, Noah, wasn't super hyped at first, but did end up blowing out the candle on his mom's piece of cake. See it all go down for yourselves in the cute video above.