Today’s the day, folks! The International Olympic Committee will decide which city will host the 2016 Summer Olympics: Rio de Janeiro, Chicago, Madrid, or Tokyo. For the last few months, Rio and Chicago have pulled ahead of the other two cities, with Rio often in the lead. However, now that President Obama will fly to Copenhagen, where the decision will be made, Chicago has pulled ahead with a slight lead over Rio.

Nevertheless, the race is “too close to call,” and it’s a mystery as to which city will actually be chosen. The voting process will begin early tomorrow morning, and the winner will be announced at 12:30PM EST. (For more information on the voting process, click here)

Stay tuned to find out which city is chosen!