Hollywood's Winter Birthday Babies!

Brrr, it's cold outside, but these adorable birthday babes – Mason! Violet! Zahara! – will melt your heart

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MAX BRATMAN

Whee! Fresh off her separation from husband Jordan Bratman, Christina Aguilera and her little boy took a ride down the slide at Mr. Bones Pumpkin Patch on Oct. 14. The singer told Marie Claire of her nearly 3-year-old, [he motivates] me to want to play and have fun."