To what do we owe this family celebration?
Beyonce Knowles shared a photo on Tumblr of her cutting a cake that included her, Jay-Z and Blue Ivy's name on it. Though we can't confirm, it may be in celebration of baby Blue Ivy, who turned 11 months this past Thursday. Beyonce, 31, and Jay-Z, 42, welcomed their daughter on Jan. 8, 2012 in New York.
That's not all Queen B has to celebrate. The pop diva also posted an Instagram pic (click HERE to view) of her back in the studio! Makeup free and in a casual black and white getup, Beyonce looked ready to belt out another hit.
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