Mark Zuckerberg is prepping for Facebook's big initial public offering this week, but despite the major business deals he has going down, he's still a regular guy with a love of pop stars like Taylor Swift and Lady Gaga.

Although he runs a multi-million-dollar company, which just plunked down $1 billion for Instagram (no big deal), he still makes time to indulge in pop culture. How do we know? By his Facebook profile, of course.

Not only does the mogul enjoy T-Swift and Gaga, but he's also a fan of Jay-Z, Rihanna, John Mayer and Radiohead. U2, Green Day, Daft Punk, Shakira, Linkin Park and LCD Soundsystem also get love from the Harvard University dropout.

Judging by his subscription to Lea Michele and Dianna Agron's Facebook pages, one can assume he's a 'Glee' fan, too. However, we have a hard time seeing the 27-year-old singing along to New Directions' version of 'Mean.' What's more plausible is Zuckerberg sitting on the couch enjoying Andy Samberg's impressions on 'Saturday Night Live' and throwing his fist in the air while watching 'Rome,' both of which he has "liked" on his profile.

Also of note are the New York native's love for In-N-Out Burger, Steve Jobs and the Yankees. He's clearly a well-rounded dude.

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