The Biggest Loser crowned its winner of season 14 on NBC on Monday.

Danni Allen, 26, won the hit reality show after she successfully shed 121 pounds during the season. Allen shed a whopping 46.9 percent of her original body weight (258 pounds) and took home the grand prize of $250,000.

Allen was one the final three contestants. She was up against Jackson Carter, 21, and Jeff Nichols, 24. During the final weigh-in, Carter learned that he had lost 42.07 percent of his body weight - he went from 328 to 190 pounds - but he failed to make it to the final two.

Allen was now up against Nichols in the final two. In the beginning of the season, Nichols' starting weight was 388 pounds. During last night's finale his weigh-in revealed that his body fat percentage loss was 46.65, he weighed 207 pounds which meant that he had lost an astounding 181 pounds.

Allen told the show's trainers and host before her final weigh-in that she felt like she still had won whether she would be crowned the winner or not because she had a successful weight loss.

"I didn't know that my dreams were possible, and I finally feel like my dream's come true," Allen said before her last weigh-in after she debuted a stunning new makeover. She wore a red one-shoulder mini-dress with slick hair pulled back and flawless makeup.

"I feel whole again and it just took clearing out all that mental stuff that I had going on to get to this place."

When The Biggest Loser announced Allen as the winner, she immediately burst into tears and hugged her trainer Jillian Michaels as confetti fell all over everyone.

Watch The Biggest Loser clip when Danni Allen learns she was crowned the winner

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The biggest loser, Reality show, Video