Operatic boy band Collabro were crowned the winners of Britain's Got Talent.
The five-piece musical theatre act impressed the judges and the voting public with their performance of Stars from the musical Les Miserables.
Opera singer Lucy Kay was runner-up, while teenage rap duo Bars and Melody, who were the bookies' favourites, finished third.
Collabro pick up £250,000 and a slot performing at the Royal Variety Performance for winning the ITV series.
The band - which includes 20-year-olds Richard Hadfield and Matt Pagan, Michael Auger and Thomas Redgrave, both 24, and Jamie Lambert, 23 - only formed a month before their first audition for the show.
After presenters Ant and Dec announced the result, Lambert said: "For everyone who voted, you're absolutely amazing. Judges - thank you so much. And to Lucy as well, she's absolutely incredible."
"Thank you Collaborators, we love you!" Hadfield added.
Collabro's rousing performance achieved a standing ovation from all four judges.
Simon Cowell said: "You know what I like about you guys is that you have steel in your eyes when you sing. You are totally focused, you know exactly the kind of group you want to be.
"The first time I heard that song it was fantastic. This was even better. This was a step up. This was a performance where I could tell you wanted to stamp on this competition and win the competition, and I like people who want to be winners."
Comedian David Walliams said: "It was wonderful. You couldn't fault it. It was perfection. I see really, really big things for you guys."
Alesha Dixon added: "I could feel that passion from you. I loved it."
Actress Amanda Holden said: "It was another faultless performance."