Emotions ran high last night at the 11th hour, literally, as Barack Obama was reelected president of the United States. As the president gave his victory speech and millions of his supporters celebrated across the country, the Internet -- and Twitter, in particular -- was also ablaze with exclamations of joy and hope. Barack Obama's "Four more years" victory tweet became the most popular tweet of all time, with over 660,000 retweets, beating out reigning social media champ Justin Bieber.
Dozen of young stars weighed in on the election results, from Demi Lovato to One Direction's Niall Horan ("Champion! What a man! 4 more years!") to boy band Mindless Behavior ("Sasha & Malia- party at the white house?!!"). Click through the slideshow below for 17 celebrity reactions to Obama's victory last night.
How did you feel about the election results? Were you following along on Twitter? Tell us in the comments below or tweet @HuffPostTeen!