Christina Grimmie may have starred on national TV on 'The Voice,' and she may have over 620,000 followers on Twitter, but we're willing to bet that there are some things that even the most hardcore fan doesn't know -- that is, until now.

Christina revealed five things that fans don't know about her ("unless you're like a really crazy, creepy stalker," she jokes) exclusively to PopCrush in the video above!

While we can't give away all of her secrets (you'll just have to watch the video for that!), we're willing to spill a couple -- like the fact that she can't stand cold pizza.

"I think it is so gross. It is obviously a dude thing," she says, cracking up.

Another fun fact? Sometimes her friends call her Tom. Hmmm.

But our favorite revelation wasn't actually one of the surprising facts -- it was our ultimate takeaway from the video, which is that Christina Grimmie is one hilarious chick.

Watch '5 Things You Didn't Know About Christina Grimmie' in the exclusive video above!

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