Mark Zuckerberg has been ruthlessly mocked for his unique clothing choice as he donned a baggy black T-shirt with a classic ... clothing during his 40th birthday party as well.

Ah, yes, our favorite 4th of July tradition: Mark Zuckerberg's America-loving post. This year, he's back surfing while waving the American Flag, sipping a can of beer, and wearing a tux — oh ...