The X Factor revealed its season three winners Alex and Sierra.

Representing team Simon, They are the first duo to have won The X Factor in the United States.
Executive producer and mentor Simon Cowell was thrilled that America chose Alex and Sierra as grand winners.
Out of happiness Simon said "I feel like Christmas just came early."
When announced as winners, both singers were all smiles as they thanked the voters at home. "This is incredible!" Alex exclaimed. 
Sierra, who looked adorably stunned, added, "Thank you so much for getting us here and thanks for not making fun of my weird faces all the time."
They won against X Factor finalists Jeff Gutt and Carlito Olivero.