To celebrate 2013, YouTube invited some of its most popular contributors to star in a mashup of popular moments this year. Can you spot all the references?
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This mashup is both hilarious and impressive.
Here's a look at some of the major sporting events happening this weekend.
A look back at some of this week's biggest plays and best moments in sports.
Mark Zuckerberg and his wife, Priscilla Chan, are expecting their first child.