The X Factor USA has named its season three winner.
Alex & Sierra gained the most public votes to win the singing competition.
The duo went head-to-head against Jeff Gutt, who came in second, while Carlito Olivero took third place.
On Wednesday's (December 18) final live performances, Alex & Sierra collaborated with Leona Lewis singing 'Bleeding Love', while also performing 'Give Me Love' and 'Say Something'.
"This is incredible," Alex said, while Sierra added: "Thank you so much for getting us here and thanks for not making fun of my weird faces all the time."
Earlier in the evening, Alex also thanked mentor Simon Cowell for his support throughout the show, saying: "We owe everything to you Mr Cowell."
The X Factor USA: Grand finale - Live blog
"I feel like Christmas just came early," Cowell revealed, while Gutt vowed not to give up on his dream.
The star-studded final also saw special appearances from Lewis, who performed her latest festive single 'One More Sleep', and Lea Michele with her debut track 'Cannonball'.
Mary J Blige was also on hand with 'Rudolph the Red-Nosed Reindeer', as well as Pitbull, who took to the stage with his latest release 'Timber', while One Direction sang 'Midnight Memories'.
Watch Alex & Sierra's performance of 'Bleeding Love' below:
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