Back in 2004, Andrew McCollum designed Facebook's first logo for his Harvard classmate, Mark Zuckerberg.

We wondered who the mysterious face was, or if it was even a real person.

Indeed, it was.

The face is that of Al Pacino.

“Zuckerberg’s friend and classmate Andrew McCollum designed a logo using an image of Al Pacino he’d found online that he covered with a fog of ones and zeros—the elementary components of digital media,” writes David Kirkpatrick in The Facebook Effect.

For more fun Facebook facts check out: 26 Amazing Things You Didn't Know About Facebook >>