Celebs React To The 2016 Olympics Opening Ceremony!

Happy Olympics, everyone!
On Friday, the 2016 Olympics kicked off in Rio de Janeiro in a star-studded Opening Ceremony! Not only did Gisele Bündchen make an appearance, Michael Phelps held the American flag!Related: The 16 Hottest Athletes Competing In The 2016 Rio Olympics
It was an incredible event, to say the least!
And we weren't the only ones tuning in! Celebs like Sarah Jessica Parker flocked to Twitter and Instagram to share their excitement, now that the global games are official un