Harris, herself, was overcome with emotion when she learned the results of the election. Click here to see her priceless reaction on the phone with President-Elect Biden.
"Congratulations to my friends, @JoeBiden and @KamalaHarris — our next President and Vice President of the United States," tweeted former President Barack Obama alongside a lengthy statement voicing his praise.
As OK! reported, the former Vice President and Senator from Delaware is set to become the 46th President of the United States after defeating incumbent Donald Trump in the electoral college. Biden crossed the 270-vote threshold Saturday after the AP called Pennsylvania for him.
Scroll through for more celebrity reactions.