PDC World Darts Championship
Venue: Alexandra Palace, London Coverage: Results on BBC Sport website
Lewis hit a stunning nine-dart finish on the way to his first world title
Adrian 'Jackpot' Lewis survived a late fightback by Gary Anderson to defeat the Scot 7-5 and be crowned PDC world champion for the first time.
Lewis, 25, was never behind in the contest and hit a stunning nine-dart finish in the opening set, the first man to achieve it in a world final.
"I think I deserve it," he said. "I need to push on from this."
The win represents Lewis's first major title and pushed him up to second in the world rankings behind Phil Taylor.
Lewis, who takes home £200,000 for the win, becomes just the fifth player to be crowned champion since the inception of the PDC event in 1994.
And after victories for Dennis Priestley, Taylor, John Part and Raymond van Barneveld, he is the first champion not to have played in the rival BDO tournament.
Despite dropping the opening leg of the match, Lewis blew Anderson away in a frenetic first set. The man from Stoke-on-Trent produced a sensational nine dart finish in the third leg, before before clinching the opener 3-1.
"I knew I had to come out strong against him," said Lewis, who was a protege of Taylor's during the early part of his career. "When I hit the two 180s I thought I'd miss the double 12."
Anderson had no answer to Lewis early on, as the Englishman went on to make it six legs without reply, claiming the second set 3-0 to leave the tournament's in-form player reeling.
But the Flying Scotsman fought back to halve Lewis's lead, taking the third set 3-0.
Lewis made Anderson pay for a series of missed doubles in the fourth set, and re-established a two set lead at 3-1.
That forced Anderson on to the offensive and a 12-dart finish set him on his way to the fifth set before he hit a 164 checkout to square the match at 3-3.
Anderson's ascendency did not last as Lewis surged to a 6-3 lead.
Anderson fought back, though, taking the 10th set 3-1 against the throw, before getting back to 6-5 with a 3-0 win, Lewis missing a combined total of six doubles as he had chances to win each leg.
But Lewis, who is nicknamed Jackpot after missing out on a $75,000 casino pot in 2005 because he was under-age by US gaming laws, would not be denied in the 12th set and finally clinched a brilliant win.
Anderson, the favourite going into the final, praised Lewis.
"He played absolutely brilliant," said the runner-up, who automatically qualifies for next month's Premier League event. "He is a great talent."
Fifteen-time world darts champion Phil 'The Power' Taylor, who was knocked out in the quarter-finals, said: "I've got a lump in my throat. I'm very very proud of Adrian."