Red Sox fans have officially been singing “Take me out to the ball game” for a century.

Fenway Park’s 100th anniversary is today and what better way to celebrate than to play the New York Yankees.

Check out MSNBC and NBC Sports for photos and reactions.

And take advantage of UNP’s Boston Baseball sale. You can save 25 percent on Ted Williams: A Baseball Life by Michael Seidel and Joe Cronin: A Life in Baseball by Mark Armour.