Marissa Mayer tweets picture of son in costume

Yahoo! CEO Marissa Mayer used Halloween as the occasion to introduce her month-old baby boy to the world.

Mayer tweeted a photo of her costumed bundle on the occasion of the company's Halloween party for kids.

The baby's name, which Mayer and husband Zach Brogue had apparently crowd-sourced for suggestions, is -- drumroll, please -- Macallister.

The tweet:


While little Mac is donning an adorable chili pepper costume, the verdict is still out on whether Mayer's coordinating chili pepper outfit is hot or not. What do you think?

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