Megan Fox's son Noah debuts in Rio de Janeiro, wins "Best Named" baby

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Megan Fox and Brian Austin Green somehow managed to keep the newest addition to their family, baby Noah Shannon, hidden from the cameras for the past four months. But on Sunday, while the trio was vacationing in Rio de Janeiro, Noah's puffy cheeks were photographed through a glass, and today, Us Weekly has finally introduced him to us. In the photo, the 4-month-old baby is held by Green, 39, as the two look out from a window.

Besides being famous for inheriting his parent's celebrity, baby Noah can claim some fame of his own as he was named the "Best Named Celebrity Baby" of 2012.

Fox gave birth to Noah on Sep. 27, 2012. This is the actress' first child with Green. The couple married in 2010 after six years of dating.

For more photos of Baby Noah, and the couple's Brazilian adventure visit PopSugar.com